CBSE Class 7 Science Reproduction In Plants Worksheet

1. Give one example of organize which reproduces by

a. Budding b. Fission c. Fragmentation d. Cutting

2. Differentiate between the asexual and sexual reproduction in plants.

3. Diagram

a. Name the method of reproduction in the above diagram.

b. In which organism is this mode of reproduction accruing.

c. What is the small bulb like projection coming out from the cell called? Note (Draw the diagram also)

VERY SHORT ANSWER TYPE:

Q1. What happens when a leaf of bryophyllum falls on moist soil?

Q2. Write two examples of plants in which roots can give rise to a plant.

Q3. What is the reproductive part of a plant?

Q4. Which type of flower has both the male and the female reproductive parts?

Q5. What takes place in plants with the help of wind, water and insects?

Q6. What are the constituents of pistil?

Q7. From where, fungi are grown on a bread piece?

Q8. By which method do moss and ferns reproduce?

Q9. Name two organisms which reproduce by budding

Q10. List the agents which help in cross pollination.

Q11. Give examples of seeds dispersed by water, wind and insects.

Q12. What are spores?

Q13. Which part of flower produces male gametes?

SHORT ANSWER TYPE QUESTIONS

Q1. Why can pollen grains be carried by wind and water?

Q2. Differentiate between:-

1. unisexual flowers and bisexual flowers

2. asexual and sexual reproduction

3. self pollination and cross pollination

Q3. How is zygote formed in sexual reproduction?

Q4. How are plants benefited by seed dispersal?

Q5. Why do spores can survive for a long time?

Q6. Which take less time to grow and bear flowers and fruits, plants produced by vegetative propagation or from seeds? Why?

Q7. How does the process of fertilization take place in flowers?

Q8. Write short notes on the following:

1. vegetative propagation

2. asexual reproduction

3. sexual reproduction

4. budding

5. fragmentation

6. spore formation

7. pollination

8. seed dispersal

Q9. Why are flowers known as reproductive parts of a plant?

Q10. What is the significance of dispersal of seeds and fruits?

Q11. Write short note on vegetative propagation by leaves.

Q12. What are the characteristic features of seeds dispersed by water and animals?

Q13. Differentiate between stamen and pistil.

Q14. Write short note on budding.

LONG ANSWER TYPE QUESTIONS

Q1. Describe the different methods of asexual reproduction . Give examples.

Q2. Describe the various ways by which seeds are dispersed.

Q3. How is fertilization brought about in a flower?

Q4. Write 4 advantages of vegetative propagation.

Q 1. Answer the following questions:

i) Name the major ways in which all living beings reproduce.

ii) Mention various methods of asexual reproduction of plants with examples.

iii) What is vegetative propagation? Which parts of the plants are involved in it?

Give example of each type.

iv) What is sexual reproduction? How is it different from asexual reproduction?

v) What is fertilization? What is its result?

vi) Mention various parts of a flower. When is a flower called ‘a complete flower’?

vii) Give two examples of a complete and an incomplete flower.

viii) What is pollination? How does it take place?

ix) What is a pollen tube? What is its importance?

x) How do the hooks on the seeds help in ‘seed dispersal’?

Q 2. Match the column:

a) Petal 1) brightly coloured

b) Ovary 2) bulb

c) Anther 3) Bryophyllum

d) Onion 4) stem

e) Leaf buds 5) female gamete

f) Rose plant 6) produces pollen grains

f) Egg 7) swollen base of flower

Q 3. Explain the process of fertilization in plants with the help of a simple diagram.

Q 4. Give two examples of each:

i) Seed’s dispersal through wind

ii) An incomplete flower

iii) Reproduction by fragmentation

iv) Reproduction by spore formation

v) Reproduction by budding

Fill in the blanks:-

1 In -------- reproduction a new plant body is formed by a single parent .

2. A small bulb like structure found in yeast is called -------------.

3. The male gamete on the stigma reach the female gamete inside the ovary through ---------

4. Male gametes are present in the --------- and the female gametes are present in the ----------

5. After fertilization of the egg , ther ovary becomes ------and ovules become -----------.

Name the following :-

1.Two organisms which reproduce by budding

2.The method by which moss and ferns reproduce?

3. The type of flower which has both the male and the female reproductive parts?

4.A plant which multiply by fragmentation,

VERY SHORT ANSWER TYPE:

Q1. What happens when a leaf of bryophyllum falls on moist soil?

Q2. Write two examples of plants in which roots can give rise to a plant.

Q3. What are the parts of a pistil?

Q4. From where, fungi are grown on a bread piece?

Q5 List the agents which help in cross pollination.

Q6 Give examples of seeds dispersed by water, wind and insects.

Q 7 . What are spores?

SHORT ANSWER TYPE QUESTIONS

Q1. Differentiate between:       
i) unisexual flowers and bisexual flowers       
ii) asexual and sexual reproductioniii) self pollination and cross pollination

Q2. How is zygote formed in sexual reproduction?

Q3. How are plants benefited by seed dispersal?

Q4. How spores can survive for a long time?

Q5. In vegetative reproduction plants take less time to grow and bear flowers and fruits , than plants produced from seeds? Why?

Q6. How does the process of fertilization take place in flowers?

Q7. Write short notes on the following:
a) budding                
b) fragmentation                        
c) spore formation

Q8. What is the significance of dispersal of seeds .

Q 9 What are the characteristic features of seeds dispersed by water and animals?

Q10. Differentiate between stamen and pistil.

LONG ANSWER TYPE QUESTIONS

Q1. Describe the different methods of asexual reproduction . Give examples.

Q2. How is fertilization brought about in a flower?

Q3. Write 4 advantages of vegetative propagation

I. Fill in the blanks:

1. Male reproductive part of a plant is __________________.

2. Plants produce seeds as a result of _______________ reproduction.

3. Asexual reproduction in spirogyra is ________________.

4. Mustard and Rose have _____________ flowers.

5. The seeds develop from the _________________.

6. Production of new individuals from vegetative parts of a plant is called _________________.

II Write True or False:

1. Yeast is a single celled organism.

2. The zygote develops into an embryo.

3. The production of new individuals from their parents is known as respiration.

4. Pistil is the female reproductive part of a plant.

5. Corn and Papaya produce bisexual flowers.

6. Plants produce seeds as a result of asexual reproduction.

7. The fruit is a ripened ovary.

8. In asexual reproduction, only one parent is involved.

III Name the following :

1. Two types of pollination seen in flowers.

2. Two seeds dispersed by animals.

3. Asexual reproduction in yeast.

4. Two spore producing plants.

5. Two winged seeds

IV Define:

1. Pollination

2. Fertilisation

3. Reproduction

V Distinguish:

Unisexual and bisexual flowers.