MCQ Questions

Students are advised to practice the NCERT MCQ Questions for Class 11 Biology Chapter 11 Transport in Plants with Answers Pdf free download is available here. MCQ Questions for Class 11 Biology with Answers are prepared as per the Latest Exam Pattern. Students can solve these Transport in Plants Class 11 MCQs Questions with Answers and assess their preparation level.

Transport in Plants Class 11 MCQs Questions with Answers

Solving the Transport in Plants Multiple Choice Questions of Class 11 Biology Chapter 11 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Transport in Plants Class 11 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 11 Biology Class 11 and cross-check your answers during preparation.

I. Select the correct answer from the following Questions:

Question 1.
The movement of molecules of solids, liquids and gases from the region of their higher concentration or kinetic energy through semi- permeable membrane to the region of lower concentration or kinetic energy is termed as
(a) Imbibition
(b) Diffusion
(c) Osmosis
(d) All of these

Answer

Answer: (b) Diffusion

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Question 2.
The phenomenon of absorption of water or any other liquid by the soil particles of a colloidal substance without forming a solution is called
(a) Imbibition
(b) Diffusion
(c) Osmosis
(d) None of these

Answer

Answer: (a) Imbibition.

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Question 3.
In a fully turgid cell turgor pressure (T.P.) is equal to
(a) Osmotic pressure
(b) Diffusion pressure deficit
(c) Wall pressure
(d) None of these.

Answer

Answer: (a) Osmotic pressure.

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Question 4.
The contraction of the protoplast due to exosmosis when the cell is placed in hypertonic solution is called
(a) Deplasmolysis
(b) Plasmolysis
(c) Both (a) and (b)
(d) None of these.

Answer

Answer: (b) Plasmolysis.

---

Question 5.
If turgidity of a cell surrounded by water increases, the wall pressure will
(a) Decrease
(b) Increase
(c) Fluctuate
(d) Remain unchanged.

Answer

Answer: (b) Increase.

---

Question 6.
Positive pressure developed in tracheary elements of the root as a result of metabolic activities of the root of plant for pushing the water upwards through xvlem into the shoot system is termed
(a) Diffusion pressure
(b) Osmotic pressure
(c) Turgor pressure
(d) Root pressure.

Answer

Answer: (d) Root pressure.

---

Question 7.
Guttation in plants is regulated by
(a) Humidity
(b) Availability of water in soil
(c) Temperature
(d) AH of these.

Answer

Answer: (d) All of these.

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Question 8.
The conducting tissue which takes part in the path of ascent of sap is
(a) xylem
(b) phloem
(c) Both (a) and (b)
(d) None of these.

Answer

Answer: (a) xylem.

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Question 9.
Water potential in the leaf cells is positive during:
(a) Guttation
(b) Low transpiration
(c) Excessive transpiration
(d) Excessive absorption.

Answer

Answer: (d) Excessive absorption.

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Question 10.
Stomata are mainly concerned with
(a) Transpiration
(b) Gaseous exchange
(c) Both (a) and (b)
(d) none of these.

Answer

Answer: (c) both (a) and (b).

---

Question 11.
Stomata open during day and close during night under inesophytic conditions in type.
(a) Leucerne
(b) Patato
(c) Cereal
(d) Barley

Answer

Answer: (a) Leuceme

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Question 12.
Rate of transpiration depends upon
(a) Increase or decrease of atmospheric temperature
(b) Increase in light intensity upto certain limit.
(c) Difference in vapour pressure of intercellular spaces of mesophyll tissue and atmospheric air.
(d) All of these

Answer

Answer: (d) All of these.

---

Question 13.
The direction and rate of water movement from cell to cell is based on:
(a) Wall pressure
(b) Turgor pressure
(c) Incipient plasmolysis
(d) Diffusion pressure deficit.

Answer

Answer: (d) Diffusion pressure deficit.

---

Question 14.
Passive of water from one cell to another is controlled by:
(a) Wall pressure
(b) Diffusion pressure deficit
(c) Hydrostatic pressure
(d) Osmotic pressure.

Answer

Answer: (b) Diffusion pressure deficit.

---

Question 15.
Imbibition involves:
(a) Capillary
(b) Diffusion
(c) Osmosis
(d) Both (a) and (b)

Answer

Answer: (d) Both (a) and (b).

---

Question 16.
Entry of water from soil to xylem is through:
(a) Gradient of ion concentration
(b) Gradient of suction pressure
(c) Gradient of imbibition
(d) Gradient of turgor pressure.

Answer

Answer: (b) Gradient of suction pressure.

---

Question 17.
Plasmolysis occurs due to:
(a) Osmosis
(b) Endosmosis
(c) Exomosis
(d) Absorption

Answer

Answer: (c) Exomosis.

---

Question 18.
Which one of the following helps in holding the leaves position and soft stems to stay erect.
(a) Transpiration
(b) Turgidity of cells.
(c) Rigidity of the cell wall
(d) stomatal cells.

Answer

Answer: (b) Turgidity of cells.

---

Question 19.
Stomata open when the guard cells have:
(a) Less K+
(b) More K+
(c) More abscisic add
(d) AH of those.

Answer

Answer: (b) More Ki+

---

II. Fill in the blanks

Question 1.
Transport over longer distances proceeds through the vascular system and is called ………….

Answer

Answer: translocation

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Question 2.
…………. is very important to plants since it the only means for gaseous movement within the plant body.

Answer

Answer: Diffusion

---

Question 3.
Water ehannels-made up of 8 different types of ………….

Answer

Answer: aquaporins

---

Question 4.
Water is essential for all ………… activities of the plant and plays a very important role in all living organisms.

Answer

Answer: physiological

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Question 5.
…………. and …………. are the two main components that determine water potential.

Answer

Answer: Solute potential, pressure potential

---

Question 6.
Pressure potential is usually positive, though in plants negative potential or tension in the water column in the xylem plays a major role in water …………… up a stem.

Answer

Answer: transport

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Question 7.
………. occurs spontaneously in response to a driving force.

Answer

Answer: Osmosis

---

Question 8.
If the external solution balances the osmotic pressure of the cytoplasm it is said to be …………

Answer

Answer: isotonic

---

Question 9.
Water and minerals and food are generally moved by a ……….. or ………… system.

Answer

Answer: mass, bulk flow

---

Question 10.
The …………. movement of water occurs exclusively through the intercellular spaces and the walls of the cells.

Answer

Answer: apoplastic

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Question 11.
The ………… system is the system of interconnected protoplasts.

Answer

Answer: symplastic

---

Question 12.
…………. can only provide a modest push in the overall process of water transport.

Answer

Answer: Root pressure

---

Question 13.
Creates transpiration pull for ………….. and ………….. of plants.

Answer

Answer: absorption, transport

---

Question 14.
Ions are absorbed from the soil by both ………… and ………… transport.

Answer

Answer: passive, active

---

Question 15.
Phloem tissue is composed of ………….. which form long columns with holes in their end walls called sieve plates

Answer

Answer: sieve tube cells

---

III. Mark the statement true (T) or false (F)

Question 1.
Transport over longer distances proceeds through the vascular system (the xylem and the phloem) and is called transpiration.

Answer

Answer: False.

---

Question 2.
Diffusion rates are affected by the gradient of concentration, the permeability of the membrane separating them, temperature and pressure.

Answer

Answer: True.

---

Question 3.
Some channels are always open; others can be controlled. Some are large, allowing a variety of molecules to cross.

Answer

Answer: True.

---

Question 4.
When a molecule moves across a membrane independent of other molecules, the process is called uniport.

Answer

Answer: True.

---

Question 5.
A seed may appear dry but it still has water-otherwise it would not be alive and respiring.

Answer

Answer: True.

---

Question 6.
Water potential is denoted by the greek symbol psi or ψ and is expressed in pressure units such as pascals (Pa).

Answer

Answer: True.

---

Question 7.
Pressure can build up in a plant system when water enters a plant cell due to diffusion causing a pressure build up against the cell wall, it makes the cell turgid; this increases the pressure potential.

Answer

Answer: True.

---

Question 8.
The net direction and rate of osmosis depends on both the pressure gradient and concentration gradient.

Answer

Answer: True.

---

Question 9.
If the external solution balances the osmotic pressure of the cytoplasm it is said to be hypotonic.

Answer

Answer: False.

---

Question 10.
Water diffuses into the cell causing the cytoplasm to build up a pressure against the wall, that is called turgor pressure.

Answer

Answer: True.

---

Question 11.
Imbibition is a special type of diffusion when water is absorbed by solids-colloids-causing them to enormously increase in volume.

Answer

Answer: True.

---

Question 12.
The svmplast is the system of adjacent cell walls that is continuous throughout the plant, except at the apoplast strips of the endodermis in the roots.

Answer

Answer: False

---

Question 13.
The cortex is impervious to water because of a band of suberised matrix called the endodermis strip.

Answer

Answer: False.

---

Question 14.
Water is transient in plants. Less than 1% of the water reaching the leaves is used in photosynthesis and plant growth.

Answer

Answer: True.

---

Question 15.
Surface Tension- attraction of water molecules to polar surfaces (such as the surface of tracheary elements).

Answer

Answer: False.

---

IV. Match the items of column I with the items of column II

Column I	Column II
(a) Pholem is responsible for	1. is not dependent on a ‘living system’.
(b) Diffusion is a slow process and	2. facilitated diffusion.
(c) In an antiport, they move in	3. transport of food (primarily) sucrose from the source to the sink.
(d) Water potential is a concept	4. opposite directions.
(e) Solute potential and pressure potential	5. are the two main components that determine water potential.
(f) The net direction and rate of	6. fundamental to understanding water movements.
(g) Membrane proteins provide sites at which such molecules cross the membrane.	7. Osmosis depends on both the pressure gradient and concentration gradient.
(h) Cells swell in hypotonic solutions	8. the cytoplasm to build up a pressure against the wall, that is called turgor pressure.
(i) Water diffuses into the cell causing	9. casparian strips of the endodermis in the roots.
(j) The symplastic system is the	10. and shrink in hypertonic ones.
(k) A mycorrhiza is symbiotic	11. a modest push in the overall process of water transport.
(l) Root pressure can at best only provide	12. system of interconnected protoplasts.
(m) In plants capillarity is aided by the direction of movement in the	13. association of a fungus with a root system.
(n) Phloem can be upwards or	14. i.e. bi-directional.
(o) The apoplast is the system of adjacent cell walls that is continuous throughout the plant, except at the	15. the small diameter of the tracheary elements the tracheids and vessel elements

Answer

Answer:

Column I	Column II
(a) Pholem is responsible for	3. transport of food (primarily) sucrose from the source to the sink.
(b) Diffusion is a slow process and	1. is not dependent on a ‘living system’.
(c) In an antiport, they move in	4. opposite directions.
(d) Water potential is a concept	6. fundamental to understanding water movements.
(e) Solute potential and pressure potential	5. are the two main components that determine water potential.
(f) The net direction and rate of	7. Osmosis depends on both the pressure gradient and concentration gradient.
(g) Membrane proteins provide sites at which such molecules cross the membrane.	2. facilitated diffusion.
(h) Cells swell in hypotonic solutions	10. and shrink in hypertonic ones.
(i) Water diffuses into the cell causing	8. the cytoplasm to build up a pressure against the wall, that is called turgor pressure.
(j) The symplastic system is the	12. system of interconnected protoplasts.
(k) A mycorrhiza is symbiotic	13. association of a fungus with a root system.
(l) Root pressure can at best only provide	11. a modest push in the overall process of water transport.
(m) In plants capillarity is aided by the direction of movement in the	15. the small diameter of the tracheary elements the tracheids and vessel elements
(n) Phloem can be upwards or	14. i.e. bi-directional.
(o) The apoplast is the system of adjacent cell walls that is continuous throughout the plant, except at the	9. casparian strips of the endodermis in the roots.

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Students who are searching for NCERT MCQ Questions for Class 12 Political Science Chapter 8 Environment and Natural Resources with Answers Pdf free download are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Political Science with Answers. You can also verify your answers from our provided Environment and Natural Resources Class 12 MCQs Questions with Answers. So, ace up your preparation with MCQ on Environment and Natural Resources Class 12 Objective Questions.

Environment and Natural Resources Class 12 MCQs Questions with Answers

Question 1.
India signed and ratified the 1997 Kyoto Protocol in:
(a) July 2002
(b) August 2002
(c) September 2002
(d) October 2002

Answer

Answer: (b) August 2002

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Question 2.
The World Council of Indigenous Peoples was formed in:
(a) 1973
(b) 1974
(c) 1975
(d) 1976

Answer

Answer: (c) 1975

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Question 3.
The progress that meets the needs of the present without compromising the ability of future generations to meet their own needs is:
(a) The tragedy of global commons
(b) Sustainable development
(c) Development without Destruction
(d) The politics of the developed nations

Answer

Answer: (b) Sustainable development

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Question 4.
Smog is a combination of
(a) Air and water vapours
(b) Water and smoke
(c) Fire and water
(d) Smoke and fog

Answer

Answer: (d) Smoke and fog

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Question 5.
Expand UNFCCC?
(a) United Nations Framework Convention on Climate Change
(b) United Nations Framework Counter on Climate Change
(c) United Nations Framework Convention on Climate Call
(d) United Nations Fast Convention on Climate Change

Answer

Answer: (a) United Nations Framework Convention on Climate Change

---

Question 6.
The multinational company Western Mining Corporation (WMC) belongs to
(a) USA
(b) Australia
(c) the UK
(d) New Zealand

Answer

Answer: (b) Australia

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Question 7.
The Government of India refers to indigenous people as
(a) Scheduled tribes
(b) Refugee people
(c) Prisoners of war
(d) Outclass people

Answer

Answer: (a) Scheduled tribes

---

Question 8.
The animal that is the symbol of the World Wide Wildlife Fund is:
(a) Tiger
(b) Panda
(c) Hornbill
(d) White Bear

Answer

Answer: (b) Panda

---

Question 9.
An example of global commonality is
(a) Gasoline pumps
(b) Giant oil refineries
(c) The ocean floor
(d) Chain of hotels

Answer

Answer: (c) The ocean floor

---

Question 10.
According to Kyoto Protocol, the major nations abide to reduce the concentration of greenhouse gases was by
(a) 2008
(b) 2010
(c) 2012
(d) 2018

Answer

Answer: (c) 2012

---

Question 11.
The Constitution of India provides for the safeguard of cultural and educational rights of minorities under fundamental rights of Article
(a) 20
(b) 23
(c) 28
(d) 29

Answer

Answer: (d) 29

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Question 12.
WWF stands for
(a) World Wild Foundation
(b) World Wildlife Federation
(c) World Wide Wildlife
(d) World Wildlife Fund

Answer

Answer: (d) World Wildlife Fund

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Students who are searching for NCERT MCQ Questions for Class 12 Political Science Chapter 9 Globalisation with Answers Pdf free download are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Political Science with Answers. You can also verify your answers from our provided Globalisation Class 12 MCQs Questions with Answers. So, ace up your preparation with MCQ on Globalisation Class 12 Objective Questions.

Globalisation Class 12 MCQs Questions with Answers

Question 1.
Which of the statements are true about globalisation?
(a) Globalisation is purely an economic phenomenon
(b) Globalisation began in 1991
(c) Globalisation is the same thing as westernisation
(d) Globalisation is a multidimensional phenomenon

Answer

Answer: (d) Globalisation is a multidimensional phenomenon

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Question 2.
Which of the statements are true about the causes of globalisation?
(a) Technology is an important cause of globalisation
(b) Globalisation is caused by a particular community of people
(c) Globalisation originated in the US
(d) Economic interdependence alone causes globalisation

Answer

Answer: (a) Technology is an important cause of globalisation.

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Question 3.
Globalization has led to the flow of ideas across
(a) National boundaries
(b) State
(c) Political parties
(d) Different planets

Answer

Answer: (a) National boundaries

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Question 4.
According to the rightist view in India, globalisation tends to(a) Benefits the weaker section of the society.
(b) Divides the State into rich and poor
(c) Weakens the State
(d) Reduces political party competition

Answer

Answer: (c) Weakens the State

---

Question 5.
This type of globalisation refers to global markets and the flow of capital, technology & goods is
(a) Political globalisation
(b) Cultural globalisation
(c) Economic globalisation
(d) Opposing globalisation

Answer

Answer: (c) Economic globalisation

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Question 6.
In 1986-87, the overall fiscal deficit of India touched an all-time high of
(a) 5% of GDP
(b) 7% of GDP
(c) 9% of GDP
(d) 10% of GDP

Answer

Answer: (c) 9% of GDP

---

Question 7.
During the colonial period, India became an
(a) importer of primary goods and raw materials
(b) exporter of finished goods and also raw materials
(c) exporter of primary goods and importer of raw materials
(d) exporter of primary goods and raw materials

Answer

Answer: (d) exporter of primary goods and raw materials

---

Question 8.
With the globalisation of markets, the tastes and preferences of consumers worldwide are
(a) Becoming similar to the tastes and preferences of American consumers
(b) Being encouraged by multinational organizations to become increasingly similar
(c) So different that they can be ignored by international organizations
(d) Converging upon a global norm

Answer

Answer: (d) Converging upon a global norm

---

Question 9.
Which of the statements are true about the impact of globalisation?
(a) Globalisation has been uneven in its impact on states and societies
(b) Globalisation has had a uniform impact on all states and societies
(c) The impact of globalisation has been confined to the political sphere
(d) Globalisation inevitably results in cultural homogeneity

Answer

Answer: (a) Globalisation has been uneven in its impact on states and societies

---

Question 10.
Which of the following is available in India due to globalisation?
(a) Foreign TV channels
(b) Coca Cola and Pepsi
(c) Sansui brand of electronics
(d) All of the above

Answer

Answer: (d) All of the above

---

Question 11.
India implemented the New Economic Policy in the year
(a) 1980
(b) 1981
(c) 1990
(d) 1991

Answer

Answer: (d) 1991

---

Question 12.
Liberalisation means:
(a) integration among economies
(b) reduced government controls and restrictions
(c) the policy of planned disinvestments
(d) competitive market

Answer

Answer: (b) reduced government controls and restrictions

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Students who are searching for NCERT MCQ Questions for Class 12 Political Science Chapter 1 Challenges of Nation Building with Answers Pdf free download are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Political Science with Answers. You can also verify your answers from our provided Challenges of Nation Building Class 12 MCQs Questions with Answers. So, ace up your preparation with MCQ on Challenges of Nation Building Class 12 Objective Questions.

Challenges of Nation Building Class 12 MCQs Questions with Answers

Question 1.
When Meghalaya was carved out of Assam?
(a) 1970
(b) 1971
(c) 1972
(d) 1973

Answer

Answer: (c) 1972

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Question 2.
When Gujarat was carved out of Bombay?
(a) 1950
(b) 1960
(c) 1970
(d) 1980

Answer

Answer: (b) 1960

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Question 3.
The interim government formed under the cabinet mission plan was headed by
(a) Dr. Rajendra Prasad
(b) Jawaharlal Nehru
(c) Sardar Vallabhbhai Patel
(d) Rajagopalachari

Answer

Answer: (b) Jawaharlal Nehru

---

Question 4.
The ”communal zones” exclude
(a) Lahore
(b) Amritsar
(c) Kolkata
(d) Jammu & Kashmir

Answer

Answer: (d) Jammu & Kashmir

---

Question 5.
The States Reorganisation Commission was appointed in which year?
(a) 1950
(b) 1951
(c) 1953
(d) 1954

Answer

Answer: (c) 1953

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Question 6.
The Cities that were divided into ‘communal zones’ during the partition violence were
(a) Lahore, Amritsar, and Calcutta
(b) Kashmir, Lucknow, and Allahabad
(c) Madras, Hyderabad, and Mysore
(d) Delhi, Mumbai, and Gwalior

Answer

Answer: (a) Lahore, Amritsar, and Calcutta

---

Question 7.
Name the original state from which Chattisgarh was carved out.
(a) Uttar Pradesh
(b) Bihar
(c) Jharkhand
(d) Madhya Pradesh

Answer

Answer: (d) Madhya Pradesh

---

Question 8.
Which one of the following is a princely state of India initially resisted joining the Indian Union?
(a) Baroda
(b) Hyderabad
(c) Mysore
(d) Gwalior

Answer

Answer: (b) Hyderabad

---

Question 9.
How many princely states existed at the time of independence of India?
(a) 560
(b) 562
(c) 563
(d) 565

Answer

Answer: (d) 565

---

Question 10.
The states created in 1960 were________
(a) Maharashtra and Gujarat
(b) Orissa and West Bengal
(c) Rajasthan and Gujarat
(d) Punjab and Haryana

Answer

Answer: (a) Maharashtra and Gujarat

---

Question 11.
Which state was not created in 2000?
(a) Jharkhand
(b) Chhattisgarh
(c) Uttaranchal
(d) Bihar

Answer

Answer: (d) Bihar

---

Question 12.
Which one of the following leaders played a vital role in the integration of princely states with India?
(a) Mahatma Gandhi
(b) Sardar Vallabhbhai Patel
(c) Jawaharlal Nehru
(d) Dr. Bhimrao Ambedkar

Answer

Answer: (b) Sardar Vallabhbhai Patel

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Students who are searching for NCERT MCQ Questions for Class 12 Political Science Chapter 2 Era of One Party Dominance with Answers Pdf free download are compiled here to get good practice on all fundamentals. Know your preparation level on MCQ Questions for Class 12 Political Science with Answers. You can also verify your answers from our provided Era of One Party Dominance Class 12 MCQs Questions with Answers. So, ace up your preparation with MCQ on Era of One Party Dominance Class 12 Objective Questions.

Era of One Party Dominance Class 12 MCQs Questions with Answers

Question 1.
Which one of the following is a state where Congress was not in power even after a huge victory in the first general elections?
(a) Bihar
(b) Orissa
(c) Madhya Pradesh
(d) Maharashtra

Answer

Answer: (b) Orissa

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Question 2.
Who was the founder of Bharatiya Jana Sangh?
(a) Mahatma Gandhi
(b) Indira Gandhi
(c) Shayama Prasad Mukherjee
(d) Sukumar Sen

Answer

Answer: (c) Shyama Prasad Mukherjee

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Question 3.
The Indian leader who is the first recipient of the Bharat Ratna Award is
(a) Balraj Madhok
(b) Rajagopalachari
(c) B.R. Ambedkar
(d) K.M. Munshi

Answer

Answer: (b) Rajagopalachari

---

Question 4.
One of the guiding principles of the ideology of the Swatantra Party was:
(a) Interests of the working class
(b) Protection of princely states
(c) Economy free from state control
(d) Autonomy of states within the union

Answer

Answer: (c) Economy free from state control

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Question 5.
The party that won the second largest number of Lok Sabha seats in the first General elections was the
(a) Praja Socialist Party
(b) Bhartiya Jana Sangh
(c) Communist Party of India
(d) Bhartiya Janta party

Answer

Answer: (c) Communist Party of India

---

Question 6.
Institutional Revolutionary Party exercised power in:
(a) Mexico
(b) Finland
(c) Cairo
(d) Brazil

Answer

Answer: (a) Mexico

---

Question 7.
An Electronic Voting Machine (EVM) is used to record
(a) politicians preferences
(b) voters preferences
(c) senior citizens preferences
(d) pressure groups preferences

Answer

Answer: (b) voters preferences

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Question 8.
The First General Elections in India were held in the year
(a) 1951
(b) 1952
(c) 1953
(d) 1954

Answer

Answer: (b) 1952

---

Question 9.
The first three Lok Sabha elections of 1952, 1957, and 1962 were dominated by the Congress Party under the leadership of:
(a) Mahatma Gandhi
(b) Indira Gandhi
(c) Shyama Prasad Mukherjee
(d) Jawahar Lal Nehru

Answer

Answer: (d) Jawahar Lal Nehru

---

Question 10.
Name the founder President of Congress Socialist Party.
(a) Acharya Narendra Dev
(b) K.M. Munshi
(c) Shayama Prasad Mukherjee
(d) Sukumar Sen

Answer

Answer: (a) Acharya Narendra Dev

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Question 11.
Who was the first Chief Election Commissioner of India?
(a) Shayama Prasad Mukherjee
(b) Sukumar Sen
(c) Rajagopalachari
(d) Balraj Madhok

Answer

Answer: (b) Sukumar Sen

---

Question 12.
The socialists advocated the ideology of
(a) Democratic Socialism
(b) Socialism
(c) Communalism
(d) Hindutva

Answer

Answer: (a) Democratic Socialism

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Mineral Nutrition Class 11 MCQs Questions with Answers

Solving the Mineral Nutrition Multiple Choice Questions of Class 11 Biology Chapter 12 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Mineral Nutrition Class 11 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 12 Biology Class 11 and cross-check your answers during preparation.

I. Select the correct answer from the following questions:

Question 1.
Name the scientist who first showed that plants obtain minerals from the soil for their growth and development.
(a) Woodward
(b) de-Saussure
(c) Armon
(d) Stout.

Answer

Answer: (a) Woodward.

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Question 2.
A mineral element is considered essential for plant if it fulfills the need for
(a) Specific symptoms
(b) Normal growth and development
(c) Direct nutrition of plant
(d) All of these

Answer

Answer: (d) All of these.

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Question 3.
An element which is constituent of every enzyme and is thus essential for ail biochemical reactions in plants is
(a) Nitrogen
(b) Sulphur
(c) Phosphorus
(d) Carbon

Answer

Answer: (a) Nitrogen.

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Question 4.
An element which is constituent of cholrophyll and also acts as a co-factor for various enzymes taking part in cellular respiration is
(a) Magnesium
(b) Nitrogen
(c) Carbon
(d) Iron.

Answer

Answer: (a) Magnesium.

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Question 5.
Main source of nitrogen for plants is
(a) Atmoshpere
(b) Soil
(c) Nitrifying bacteria
(d) Water soluble nitrites nitrates.

Answer

Answer: (a) Atmosphere.

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Question 6.
Animal and other heterotrophic organisms obtain nitrogen from
(a) Atmosphere
(b) Plants
(c) Nitrifying bacteria
(d) All of these.

Answer

Answer: (b) Plants.

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Question 7.
Elements obtained by plants from the soil are known as
(a) Mineral elements
(b) Non-mineral elements
(c) Both (a) and (b)
(d) None of these.

Answer

Answer: (a) Mineral elements.

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Question 8.
Elements obtained by plants from atmosphere of water are known as
(a) Mineral elements
(b) Non-mineral elements
(c) Gases
(d) Both (a) and (b)

Answer

Answer: (b) Non-mineral elements.

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Question 9.
Non-mineral elements of plants are
(a) Carbon, hydrogen and sulphur
(b) Carbon, oxygen and nitrogen
(c) Sulphar, chlorine and nitrogen
(d) Carbon, hydrogen and oxygen.

Answer

Answer: (d) Carbon, hydrogen and oxygen.

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Question 10.
An element of plants which is derived both from mineral and non-mineral resources is
(a) Carbon
(b) Sulphur
(c) Nitrogen
(d) Hydrogen.

Answer

Answer: (c) Nitrogen.

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Question 11.
The technique of growing the plants by placing their roots in nutrient solution instead of growing in soil is called
(a) Water culture
(b) Hydroponics
(c) Soilless culture
(d) All of these.

Answer

Answer: (d) All of these.

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Question 12.
Phosphorus is very essential for
(a) Photosynthesis and respiration as carbohydrates taking part in different reactions react in phosphorylated form
(b) It is constituent of NADP which plays crucial role in light reaction of photosynthesis.
(c) Helps in storing chemical energy in glucose.
(d) All of these.

Answer

Answer: (d) All of these.

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Question 13.
Loss of chloropvll that leads to yellowing of entire leaf or part of it is called
(a) Chlorosis
(b) Necrosis
(c) Abscission
(d) Mottling

Answer

Answer: (a) Chorosis

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Question 14.
Appearance of patches of green and non-green areas on the leaves are called
(a) Necrosis
(b) Chlorosis
(c) Curling
(d) Mottling.

Answer

Answer: (d) Mottling.

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Question 15.
Localised death of tissue of leaf is called
(a) Chlorosis
(b) Necrosis
(c) Mottling
(d) Dieback.

Answer

Answer: (b) Necrosis.

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Question 16.
The yellow disease in tea plant occurs due to
(a) Deficiency of sulphur
(b) Deficiency of nitrogen
(c) Excess of sulphur
(d) None of these

Answer

Answer: (a) Deficiency of sulphur.

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Question 17.
Which one is not related with plant ash?
(a) Trace element
(b) Essential elements
(c) Nitrogen
(d) Mineral elements.

Answer

Answer: (c) Nitrogen.

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Question 18.
Deficiency of boron in plants causes disease
(a) Corky spot of apples
(b) Heart rot of sugar beet
(c) Top sickness of tobacco
(d) All of these.

Answer

Answer: (d) All of these

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Question 19.
In nitrogen cycle, the nitrifying bacteria
(a) convert ammonia into nitrogen
(b) Fix atmospheric nitrogen
(c) Convert amino acids into ammonia
(d) Convert ammonia into nitrates.

Answer

Answer: (d) Convert ammonia into nitrates.

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Question 20.
The most common symbiotic nitrogen fixing organism/s is
(a) Azotobacter
(b) Closteridium
(c) Rhizobium leguminaris
(d) Chlorobium.

Answer

Answer: (c) Rhizobium leguminaris

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Question 21.
In non-leguminous plants like Casurina and Alnus symbiotic N fixing bacteria occur in their roots like
(a) Frankia
(b) Closteridium
(c) Rhizobium
(d) Azotobacter.

Answer

Answer: (a) Frankia.

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Question 22.
The main source of nitrogen nutrition in plants is
(a) Nitrogen in the atmosphere
(b) Nitrogen fixing bacteria
(c) Mineral nitrogen
(d) All of these.

Answer

Answer: (a) Nitrogen in the atmosphere.

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Question 23.
The mineral uptake occurs in plants
(a) Against concentration gradient
(b) Along concentration gradient
(c) Both (a) and (b)
(d) None of these.

Answer

Answer: (a) Against concentration gradient.

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Question 24.
The most common mineral element which becomes deficient in agricultural soils is
(a) Phosphorus
(b) Nitrogen
(c) Potassium
(d) All of these.

Answer

Answer: (d) All of these.

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Question 25.
Biological nitrogen fixation involves reduction of N₂ by addition of
(a) A pair of hydrogen atoms
(b) A pair of CO₂ molecules
(c) A pair of oxygen atoms
(d) None of these.

Answer

Answer: (a) A pair of hydrogen atoms.

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II. Fill in the blanks

Question 1.
Julius Sachs technique of growing plants in a nutrient solution is known as ………….

Answer

Answer: hydroponics

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Question 2.
The element must be …………. necessary for supporting normal growth and reproduction.

Answer

Answer: obsolutely

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Question 3.
The requirement of the element …………. and not ………….. by another element.

Answer

Answer: must be specific, replaceable

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Question 4.
The element must be ………….. in the metabolism of the plant.

Answer

Answer: directly involved

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Question 5.
………… must generally be present in plant tissues in concentration of 1 to 10 mg/L of dry matter.

Answer

Answer: Macronutrients

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Question 6.
…………. or trace elements, are needed in very small amount (equal to or less than 0.1 mg/L of dry matter).

Answer

Answer: Micronutrients

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Question 7.
……….. is the mineral element required by plants in the greatest amount.

Answer

Answer: Nitrogen

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Question 8.
………… is absorbed by the plants from soil in the form of phosphate ions (either as H₂ PO^–₄ or HPO^2-₄).

Answer

Answer: Phosphorus

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Question 9.
………… is absorbed as potassium ion (K⁺)

Answer

Answer: Potassium

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Question 10.
Plant absorbs …………. from the soil in the form of calcium ions (Ca²⁺).

Answer

Answer: calcium

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Question 11.
Magnesium activates the enzymes of respiration, photosynthesis and are involved in the synthesis of ………. and …………

Answer

Answer: DNA, RNA

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Question 12.
Sulphur is present in two amino acids ………… and ………….. and is the main constituent of several coenzymes, vitamins and ferredoxin.

Answer

Answer: Cysteine, methionine

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Question 13.
Plants obtain ……….. in the form of ferric ions (Fe³⁺).

Answer

Answer: iron

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Question 14.
Manganese activates many enzymes involved in ……….., ………… and ………….

Answer

Answer: photosynthesis, respiration, nitrogen metabolism

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Question 15.
Copper is essential for the overall …………. in plants. Like iron

Answer

Answer: metablism

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III. Mark the statement true (T) or false (F)

Question 1.
Chlorine is absorbed in the form of chloride anion (Cl^–).

Answer

Answer: True.

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Question 2.
Boron is required for uptake and utilisation of Ca²⁺, membrane functioning, pollen germination, cell elongation, cell differentiation and carbohydrate translocation.

Answer

Answer: True.

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Question 3.
Plants obtain it in the form of molybdate ions (MoO₂²⁺).

Answer

Answer: True.

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Question 4.
The concentration of the essential element below which plant growth is retarded is termed as critical concentration.

Answer

Answer: True.

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Question 5.
The toxicity symptoms are very easy to identify.

Answer

Answer: False.

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Question 6.
The process of conversion of nitrogen (N₂) to ammonia is termed as nitrogen fixation.

Answer

Answer: True.

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Question 7.
Ammonia is second oxidised to nitrite by the bacteria Nitrosomonas and/or Nitrococcus.

Answer

Answer: False.

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Question 8.
Reduction of nitrogen to ammonia by living organisms is called symbiotic nitrogen fixation.

Answer

Answer: False.

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Question 9.
Both Rhizobium and Frankia are free-living in soil, but as symbionts, can fix the atmospheric nitrogen.

Answer

Answer: True.

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Question 10.
At physiological pH, the ammonia is protonated to form NH⁺₄ (ammonium) ion.

Answer

Answer: True.

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Question 11.
Glutamic acid is the main amino acid from which the transfer of NH_{2</sub, the amino group takes place and other amino acids are formed through transamination.}

Answer

Answer: True.

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Question 12.
Majority of the minerals that are essential for the growth and development of plant become available to roots due to weathering and breakdown of rocks.

Answer

Answer: True.

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Question 13.
Mineral salts are translocated through xylem along with the ascending stream of water, which is pulled up through the plant by transpirational pull.

Answer

Answer: True.

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Question 14.
Any mineral ion concentration in tissues that reduces the dry weight of tissues by about 80 percent is considered toxic.

Answer

Answer: False.

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Question 15.
The basic needs of all living organisms are essentially the some. They require macromolecules, such as carbohydrates, proteins and fats, and minerals for their growth and developments..

Answer

Answer: True.

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IV. Match the items of column I with the items of column II

Column I	Column II
(a) Hydroponics.	1. Macronutrients
(b) Iron, manganese, copper, molybdenum, zinc, boron, chlorine and nickel.	2. NO2 or NO4.
(c) Potassium	3. In plants, this is required in more abundant quantities in meristematic tissues, buds, leaves and root tips.
(d) Nitrogen is absorbed mainly as NO3 though some are also taken up as	4. Micronutrients
(e) Carbon, hydrogen, Oxygen, nitrogen, phosphorous, sulphur, potassium, calcium and magnesium.	5. The technique of growing plants in a nutrient solution.
(f) It is an important constituent of proteins involved in the transfer of electrons like ferredoxih and cytochromes.	6. This symptom is caused by the deficiency of elements N, K, Mg, S Fe, Mn, Zn
(g) Chlorosis is the loss of chlorophyll leading to yellowing in leaves.	7. Flux
(h) The movement of ions is usually called	8. Iron
(i) The process of conversion of nitrogen (N2) to ammonia is termed as	9. Fate of ammonia.
(j) Rhizobium	10. Transamination
(k) At physiological pH, the ammonia is protonated to from NH+4 (ammonium) ion.	11. It is absorbed in the form of chloride onion (Cl–)
(l) It involves the transfer of amino group from one amino acid to the keto group of a keto acid.	12. Zinc.
(m) It is also needed in the synthesis of auxin.	13. nitrogen- fixation.
(n) Chlorine	14. Symbiotic biological nitrogen fixation.
(o) Potassium plays an important role in the	15. opening and closing of stomata.

Answer

Answer:

Column I	Column II
(a) Hydroponics.	5. The technique of growing plants in a nutrient solution.
(b) Iron, manganese, copper, molybdenum, zinc, boron, chlorine and nickel.	4. Micronutrients
(c) Potassium	3. In plants, this is required in more abundant quantities in meristematic tissues, buds, leaves and root tips.
(d) Nitrogen is absorbed mainly as NO3 though some are also taken up as	2. NO2 or NO4.
(e) Carbon, hydrogen, Oxygen, nitrogen, phosphorous, sulphur, potassium, calcium and magnesium.	1. Macronutrients
(f) It is an important constituent of proteins involved in the transfer of electrons like ferredoxih and cytochromes.	8. Iron
(g) Chlorosis is the loss of chlorophyll leading to yellowing in leaves.	6. This symptom is caused by the deficiency of elements N, K, Mg, S Fe, Mn, Zn
(h) The movement of ions is usually called	7. Flux
(i) The process of conversion of nitrogen (N2) to ammonia is termed as	13. nitrogen- fixation.
(j) Rhizobium	14. Symbiotic biological nitrogen fixation.
(k) At physiological pH, the ammonia is protonated to from NH+4 (ammonium) ion.	9. Fate of ammonia.
(l) It involves the transfer of amino group from one amino acid to the keto group of a keto acid.	10. Transamination
(m) It is also needed in the synthesis of auxin.	12. Zinc.
(n) Chlorine	11. It is absorbed in the form of chloride onion (Cl–)
(o) Potassium plays an important role in the	15. opening and closing of stomata.

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