NCERT Solutions for Class 7 Science<\/a> Chapter 12 Reproduction in Plants Questions and Answers are prepared by our highly skilled subject experts to help students while preparing for their exams.<\/p>\nReproduction in Plants NCERT Solutions for Class 7 Science Chapter 12<\/h2>\nClass 7 Science Chapter 12 Reproduction in Plants Textbook Exercise Questions and Answers<\/h3>\n
Question 1.
\nFill in the blanks:
\na. Production of new individuals from the vegetative part of parent is called ………………
\nb. A flower may have either male or female reproductive parts. Such a flower is called ………………
\nc. The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as ………………
\nd. The fusion of male and female gametes is termed as ………………
\ne. Seed dispersal takes place by means of ………………, ……………… and ………………
\nAnswer:
\na. vegetative propagation
\nb. unisexual flower
\nc. pollination
\nd. fertilisation
\ne. wind, water, animals<\/p>\n
Question 2.
\nDescribe the different methods of asexual reproduction. Give examples.
\nAnswer:
\nThere are following methods of asexual reproduction:
\na. Vegetative propagation: In this asexual reproduction, new plants are produced from roots, stems, leaves and buds of individual plant. For example: stem cutting in champa, eye growth in potatoes, leaf bud in case of Bryophyllum, etc.<\/p>\n
b. Budding: The bud is a small projection which gradually grows and gets detached from the parent cell and forms a new cell. The new cell grows, matures and produces more cells. For example, in yeast and Hydra.<\/p>\n
c. Fragmentation: In this mode of reproduction, the growth and multiplication is done by rapidly breaking down into two or more fragments. Each piece grows into new individual when water and nutrients are available. For example, algae.<\/p>\n
d. Spore formation: This reproduction is done by spores, which germinate under favourable conditions and develop into a new individual. For examples, mosses and ferns.<\/p>\n
Question 3.
\nExplain what you understand by sexual reproduction.
\nAnswer:
\nWhen two parents are involved in reproduction, it is called sexual reproduction. Formation of male and female gametes is the first step of sexual reproduction. The male and female gametes fuse during fertilisation to produce zygote. The zygote subsequently develops into an embryo which further develops into a new individual.<\/p>\n
Question 4.
\nState the main differences between asexual and sexual reproduction.
\nAnswer:<\/p>\n