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CBSE 7th Standard Science Nutrition in Plants Model Questions Papers Study Material - QB365 Set B

Published on: 31/10/2025

Question Set B

CBSE 7th Standard Science Nutrition in Plants Model Questions Papers Study Material - QB365

Download CBSE Class 7th Standard CBSE Science question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 7th Standard CBSE Science

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Std: 7th Standard CBSE - Science

chapter: Nutrition in Plants - Model Questions Papers

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Questions:

Generic 3

3 x 3 = 9

2. (a) Draw a diagram of a pitcher plant to show the following parts:
(i) Pitcher
(ii) Lid
(b) What is the mode of nutrition of this plant?
(c) Is it an autotroph or partial heterotroph?

Show with the help of a sketch that the plants are the ultimate source of food.

Give a brief description of the process of synthesis of food in green plants.

Multiple Choice Question

5 x 1 = 5

The term that is used for the mode of nutrition in yeast, mushroom and bread-mould is :

(a)

autotrophic

(b)

insectivorous

(c)

saprophytic

(d)

parasitic

In the absence of which of the following will photosynthesis not occur in leaves?

(a)

Guard cells

(b)

Chlorophyll

(c)

Vacuole

(d)

Spacebetween cells

Which part of the plant takes in carbon dioxide from the air for photosynthesis?

(a)

Root hair

(b)

Stomata

(c)

Leaf veins

(d)

Sepals

The plant which traps and feeds on insects is

(a)

Cuscuta

(b)

China rose

(c)

pitcher plant

(d)

rose

Amarbel is an example of

(a)

autotroph

(b)

parasite

(c)

saprotroph

(d)

host

Match the following

5 x 1 = 5

Bacteria Rhizobium

10.

Saprotroph

11.

Animals

12.

Amarbel

13.

Nitrogen

Generic 2

4 x 2 = 8

14.

Why is it true to say that insectivorous plants are partial heterotrophs? Explain

15.

How to Rhizobium bacteria take nitrogen from atmosphere?

16.

Why do some plants feed on insects?

17.

A carbohydrate is produced by plants as food source. It is constituted from which molecules?

Generic 5

1 x 5 = 5

18.

Asha went to visit her grandfather in his village. He was having a serious discussion with his fellow members regarding the productivity level of crops for present year. They all were worried about how to increase the productivity of crop Asha listened to this and then suggested to the group that the reason may be decreased level of minerals in soil.
She told her grandfather to plant crops like pulses, gram, beans, etc., for a year then follow with regular crops. This will increase the crop productivity?
(a) What will you name the process suggested by Asha? Why is there decrease in crop productivity?
(b) What are noted benefits of this process? Will the results be as what Asha expressed?
(c) What values are shown by Asha?

Fill up / 1 Marks

5 x 1 = 5

19.

Chlorophyll which captures ............ from sunlight.

20.

Leaves have a green pigment called ..............

21.

The plants that provide nutrition to the parasitic plant are called _____________

22.

Cuscuta is a ___________ plant.

23.

All green plants possess ______________ in their leaves.

True or False

5 x 1 = 5

24.

Rhizobium can fix atmospheric nitrogen into nitrogen compound.

(a)

False

(b)

True

25.

Lichen is a saprophytic plant.

(a)

True

(b)

False

26.

Pitcher plant eats insects.

(a)

False

(b)

True

27.

Fungi are green plants that can synthesise their own food.

(a)

True

(b)

False

28.

Chlorophyll is present in an animal cell.

(a)

True

(b)

False

1 Marks

3 x 1 = 3

29.

All green plants are called ...............

30.

............ is produced and ..............is utilised during photosynthesis.

31.

Plants like cuscuta takes food from .............. plant.

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Answers Key:

Generic 3

3 x 3 = 9

(a)

Fig. : Pitcher Plant showing lid and pitcher
(b) Autotrophic and Heterotrophic both.
(c) Partial heterotroph.

The following sketch shows that the plants are the ultimate source of food.

Plants prepare their own food by the process of photosynthesis. Leaves of the plants have green pigment called chlorophyll, which helps them to capture the energy of the sunlight. The plants synthesise their food from carbon dioxide and water in the presence of sunlight. This process is called photosynthesis. The reaction for the process of photosynthesis can be shown as follows:

During photosynthesis, food is synthesised and oxygen is released in the process.

Multiple Choice Question

5 x 1 = 5

(b)
Chlorophyll

(b)
Stomata

(b)
parasite

Match the following

5 x 1 = 5

()
N₂-fixing

10.

()
Fungi

11.

()
Heterotrophs

12.

()
Parasite

13.

()
Bacteria

Generic 2

4 x 2 = 8

14.

Insectivorous plants are green and can do photosynthesis so they are called autotrophs. But they also can trap insects and digest them. Due to this, they are called partial heterotrophs.

15.

Rhizobium bacteria can take nitrogen from atmosphere and convert it into a soluble form which is used by that plant in which bacteria live.

16.

Insectivorous plants grow in soil which lack nitrogen, therefore they eat insects to fulfil their need of nitrogen.

17.

Carbohydrates are composed of carbon, hydrogen and oxygen.

Generic 5

1 x 5 = 5

18.

(a) This process is known as crop rotation. All the plants/crops grown in soil use the minerals present in soil for their own use. This continuous usage depletes the concentration of mineral in soil.
(b) After growing leguminous plants, the mineral content of soil is restored and enriched to new level. Yes, the benefit of leguminous plant is the re-enrichment of soil minerals.
(c) Asha is observant, sincere and interested in applying her knowledge to situations.

Fill up / 1 Marks

5 x 1 = 5

19.