NCERT Solutions for Class 7 Science Chapter 12 Reproduction in Plants

In this page we have NCERT Solutions for Class 7 Science Chapter 12 Reproduction in Plants . Hope you like them and do not forget to like , social share and comment at the end of the page.

Question 1
Fill in the blanks:
(a) Production of new individuals from the vegetative part of parent is called _____________.
(b) A flower may have either male or female reproductive parts. Such a flower is called_____________.
(c) 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 _____________.
(d) The fusion of male and female gametes is termed as _____________.
(e) Seed dispersal takes place by means of _____________, _____________ and _____________.

(a) vegetative propagation.
(b) unisexual.
(c) pollination.
(d) fertilization.
(e) wind, water and animals.

Question 2
Describe the different methods of asexual reproduction. Give examples.
Different methods of asexual reproduction:

Vegetative propagation

In this mode of reproduction, new plants are produced from vegetative part of mother part of the plants like roots, stems, leaves and buds of individual plant. Examples: Stem cutting in Champa, eye growth in potatoes etc.

Spore Formation

This reproduction is done by spores which under favorable condition germinates and develops into a new individual. Examples: Moss and ferns.


In this mode of reproduction, parent body breaks down into two or more fragments. Each pieces grow into new individuals when water and nutrients are available. Example: Algae


The bud is a small projection which gradually grows and gets detached from the parent cell and forms a new yeast cell. The new yeast cell grows, matures and produces more yeast cells. example: Yeast. Sometimes a chain of buds is also formed

Question 3
Explain what you understand by sexual reproduction.
In Sexual reproduction, two parents are involved for the production of new generation. The reproduction is done by male and female gametes. The stigma contains the male parts in which pollen grains are formed and pistil consists of stigma, style and ovary which contains the female parts. Most of the plants reproduce sexually with the help of flowers and seeds.

Question 4
State the main difference between asexual and sexual reproduction.

Asexual Reproduction

Sexual reproduction

(i) One parent is involved.

(i) Two parents are involved.

(ii) New generation is identical or true copy of their parent.

(ii) New born are similar to their parents.

(iii) It doesn't require the formation of gametes.

(iii) It requires the formation of gametes.

(iv) Special organs for reproduction are not required.

(iv) Special organs for reproduction are required.

(v) Examples: Potato, Jasmine, Rose, Yeast, Bryophyllum etc.

(v) Examples: Mangoes, coconut, Hibiscus etc.

Question 5
Sketch the reproductive parts of a flower.

NCERT Solutions for Class 7 Science Chapter 12  Reproduction in Plants

Question 6
Explain the difference between self-pollination and cross-pollination.

Self pollination

Cross Pollination

(i) Transfer of pollen from the stamen to the pistil of the same flower.

(i) Transfer of pollen from the stamen of one flower to the pistil of another flower of the same plant or different plants of the same kind.

(ii) External medium is not required.

(ii) External medium is required.

(iii) It occurs only in bisexual flower.

(iii) It occurs in both unisexual and bisexual flowers.

Question 7
How does the process of fertilization take place in flowers?
Fertilization is the process in which male and female gametes fuse together. In flowering plants, the pollen fuses with ovules present in the ovary to form a zygote, which later on develops into seed.

NCERT Solutions for Class 7 Science Chapter 12  Reproduction in Plants

Question 8
Describe the various ways by which seeds are dispersed.
Various agents by which seeds are dispersed are:


Light seeds or hairy seeds and hairy fruit get blown off with the wind to faraway places. Examples: Sunflower, maple, drumsticks etc.


 Fruits or seeds which develop floating ability in the form of spongy or fibrous outer coat are carried away with to different places. Example: Coconut.

Animals or birds

Seeds like xanthium have spines which help them to stick to fur or skin of the animals. Some seeds eaten by birds and animals along with fruit pass out unharmed in waste. They germinate where they fall.


Some seeds are dispersed when the fruits burst with sudden jerks and the seeds are scattered far from the parent plant. Examples: castor and balsam.

Question 9
Match items in Column I with those in Column II:

Column I

Column II

(a) Bud

(i) Maple

(b) Eyes

(ii) Spirogyra

(c) Fragmentation

(iii) Yeast

(d) Wings

(iv) Bread mould

(e) Spores

(v) Potato


(vi) Rose


Column I

Column II

(a) Bud

(iii) Yeast

(b) Eyes

(ii) Potato

(c) Fragmentation

(v) Spirogyra

(d) Wings

(i) Maple

(e) Spores

(iv) Bread mould

Question 10
Tick (?) the correct answer:
(a) The reproductive part of a plant is the
(i) leaf          
(ii) stem        
(iii) root       
(iv) flower
(iv) flower
(b) The process of fusion of the male and the female gametes is called
  (i) fertilization        
  (ii) pollination          
   (iii) reproduction         
   (iv) seed formation

(i) fertilization
(c) Mature ovary forms the
  (i) seed          
   (ii) stamen      
   (iii) pistil         (iv) fruit

(iv) fruit
(d) A spore producing plant is
  (i) rose        
 (ii) bread mould         
 (iii) potato       
  (iv) ginger

(ii) bread mould

(e) Bryophyllum can reproduce by its
  (i) stem       
   (ii) leaves        
   (iii) roots        
   (iv) flower

 (ii) leaves

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Reference Books for class 7 Science

Given below are the links of some of the reference books for class 7 math.

  1. Science for Class 7 by Lakhmir Singh
  2. Science Foundation Course For JEE/NEET/NSO/Olympiad - Class 7
  3. CBSE All In One Science Class 7 by Arihant Experts (Author)
  4. IIT Foundation Physics, Chemistry & Maths for Class 7

You can use above books for extra knowledge and practicing different questions.

Class 7 Maths Class 7 Science

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