The important questions provided below will also make students familiar with the marking scheme and the difficulty level of the exam. The important questions for CBSE class 7 Science are prepared by subject experts according to the latest syllabus of CBSE. Students are advised to solve these important questions which can make them more focused on their exam and also bring a sense of discipline and seriousness in their exam preparation.

The Central Board of Secondary Education (CBSE) is a prestigious educational board which comes under the Union Government of India. Here, you will get the clue that from where and how the questions are being framed from the chapter Reproduction in Plants for CBSE Class 7 Science. These questions can provide students a chapter wise preparation strategy so that they can prepare for their exam more efficiently.

The National Council of Education and Training sets the curriculum for all schools that follow the Central Board of Secondary Education (CBSE) across the nation. Creative questions were added in this question paper in order to enhance the student's knowledge and get the idea that how to answer strategic questions asked in the board exams. This question paper is designed based on the academic syllabus. Sample papers should be practiced in examination condition at home or school and also show it to your teachers for checking or compare with the answers provided.

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Questions:

Fill up / 1 Marks

5 x 1 = 5

Seeds of grams are dispersed by________.

The fruits are ripened_________.

Buds in the potato are also called_________.

The _______ is the male reproductive part of flower while _________ is the female reproductive part of a flower.

The fusion of male and female gametes is termed as ___________.

Generic 3

5 x 3 = 15

In the diagram, label the parts marked (a), (b) and (c).

Draw a diagram of pistil to show pollen grain, pollen tube, ovary and ovule.

What is seed dispersal? What will happen if all the seeds of a plant were to fall at a same place and grow?

What is a bud? Which organism reproduces by budding? Given the diagrammatic representation of budding in a plant.

10.

How does the process of fertilisation take place in flowers?

Multiple Choice Question

5 x 1 = 5

11.

The female gamete of a flowering plant is present in which part?

(a)

Ovules

(b)

Buds

(c)

Pollen

(d)

Anther

12.

The mode of vegetative reproduction where scion and stock are used is called

(a)

budding

(b)

grafting

(c)

cutting

(d)

layering

13.

The fusion of male and female gametes is called

(a)

ovulation

(b)

population

(c)

pollination

(d)

fertilisation

14.

The 'eye' of the potato plant is what?

(a)

The root is to any plant

(b)

The bud is to a flower

(c)

The bud is to Bryophyl/um leaf

(d)

The anther is to stamen

15.

A spore-producing plant is

(a)

rose

(b)

bread mould

(c)

potato

(d)

ginger

Generic 2

5 x 2 = 10

16.

What is vegetative propagation?

17.

How do the pollen grain of a unisexual flower reaches the pistil of another flower?

18.

Write the male and female reproductive parts present on the flowers.

19.

Boojho had the following parts of a rose plant-a leaf, roots, a branch, a flower, a bud and pollen grains. Which of them can be used to grow a new rose plant?

20.

If the filament of Spirogyra is broken into fragments. What will you observe?

Generic 5

2 x 5 = 10

21.

(a) What is the asexual reproduction? Name any two method of asexual reproduction with one example each.
(b) Sketch the reproductive parts of a flower.

22.

Name some fruit bearing plants. Now make a table and describe the method of seed dispersal in these fruits as well as the part which helps in the seed dispersal.

1 Marks

5 x 1 = 5

23.

Boojho wants to know why flowers are generally so colourful and fragrant. Is it to attract insects?

24.

Coconut is a large and heavy fruit. How is it adapted for dispersal by water?

25.

What are eyes in potato?

26.

Name the structure which carries the male gamete to the ovule.

27.

How rose or champa are propagated?

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Answers Key:

Fill up / 1 Marks

5 x 1 = 5

()
air

()
ovary

()
eyes

()
stamen, pistil

()
fertilisation

Generic 3

5 x 3 = 15

Plant produces large number of seeds. When these seeds fall down they start growing. The process by which the seeds are scattered to different place (far and wide from their parents) is called seed dispersal.
The seeds and fruits are dispersed away through various agencies like air, water and animals. Sometimes dispersal takes place by the explosion or bursting of fruits. If all the seeds of a plant were to fall at the same place and grow, there will be a severe competition for sunlight, water, mineral and space. As a result, the survival for the plants will be difficult and the plants who survive will not grow into a healthy plant.

Buds are small bulb-like projections of yeast cell.
These are asexual reproducing bodies of yeast. Diagrammatic representation of budding in yeast

10.

The steps involved in the process of fertilisation are
(i) After pollination, pollen grains start growing into a pollen tube on the stigma passing through pistil.
(ii) The tube extends through the style and reaches to the ovules.
(iii) The pollen tube carries the male gametes called pollen grains.
(iv) Male gametes fuse with the egg (female gamete) present inside ovule and forms a zygote. This process is called fertilisation.
(v) Later zygote develops into an embryo and ovules develop into a seed.
(vi) Thus, seed carries an embryo with stored food and is covered by a hard protective covering called seed coat.

Multiple Choice Question

5 x 1 = 5

11.

(a)
Ovules

12.

(b)
grafting

13.

(d)
fertilisation

14.

(b)
The bud is to a flower

15.

A spore-producing plant is bread mould.

Generic 2

5 x 2 = 10

16.

The mode of asexual reproduction in which new plants are produced from roots, sterns, leaves and buds of parent plant is called vegetative propagation.

17.

The pollen grain is carried to the pistil by pollinating agents. The pollinating agent can be wind, water, air or insect as per adaptation of the flower.

18.

The male reproductive part is stamen and the female reproductive part is pistil.

19.

Branch can be used to grow a new rose plant. As, rose reproduces by vegetative propagation, i.e. stem cutting method.

20.

If the filament of Spirogyra are broken into fragments, then each fragment will develop into a new plant.

Generic 5

2 x 5 = 10

21.

(a) Asexual reproduction is a type of reproduction in plants in which new plants are obtained from old ones without the production of seeds.
Two methods of asexual reproduction:
Vegetative Production, Spore Formation, Budding, Fragmentation (any two).
(b) Reproductive Parts of Flower:

22.

The method of seed dispersal in the fruits and the parts which help in the seed dispersal:

Name of fruits bearing plants	Agents through which seeds are dispersed	Parts or seeds which helps in dispersal
Drumstick	Air/wind	Winged seeds
Sunflower	Wind	Hairy seeds
Gokhru	Animal	Spines and Hooks
Coconut	Water	Fibrous coating
Lotus	Water	Thalamus float in water
Poppy	Explosion	Pericarp bursts
Grass	Wind	minute, light weighted seeds