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

7th Standard CBSE Syllabus & Materials

7th Standard CBSE

CBSE 7th Standard Science Wastewater Story Sample Question Papers Study Material - QB365

NEW

7th Standard CBSE

CBSE 7th Standard Science Forests: Our Lifeline Sample Question Papers Study Material - QB365

NEW

7th Standard CBSE

CBSE 7th Standard Science Water: A Precious Resource Sample Question Papers Study Material - QB365

NEW

7th Standard CBSE

CBSE 7th Standard Science Light Sample Question Papers Study Material - QB365

NEW

7th Standard CBSE

CBSE 7th Standard Science Electric Current and Effects Sample Question Papers Study Material - QB365 Set C

NEW

7th Standard CBSE

CBSE 7th Standard Science Electric Current and Effects Sample Question Papers Study Material - QB365 Set B

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

Published on: 31/10/2025

Question Set C

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

Questions + Answers key

Take MCQ Science Test

QB365 Student Learing Managemnet System

Std: 7th Standard CBSE - Science

chapter: Nutrition in Plants - Model Questions Papers

Visit QB365-SLMS - https://www.qb365.in/slms/ Complete Questions and Answers

Questions:

Generic 3

6 x 3 = 18

Autotrophs and heterotrophs are two different organisms with distinct modes of nutrition state. How are they different from each other?

Plants are considered an essential part of earth as they keep a check on lot of process occurring all over. What would happen if all the green plants are wiped from earth?

Sunlight, Chlorophyll, carbon dioxide, water and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw materials.
(a) Available in the plant: __________
(b) Available in the soil: ___________
(c) Available in the air: __________
(d) Available during day: __________

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

How would you test the presence of starch in leaves?

Distinguish between a parasite and a saprotroph.

Fill up / 1 Marks

4 x 1 = 4

Leaves are called the _____________ of plants.

__________________ plants derive their nutrient from dead and decaying animals or plants.

During photosynthesis, plants take in ___________ and release ____________

10.

Green plants are called _____________ since they synthesise their own food.

1 Marks

2 x 1 = 2

11.

Name the following the pores through which leaves exchange gases.

12.

Name the following a plant that has both autotrophic and heterotrophic mode of nutrition.

Multiple Choice Question

4 x 1 = 4

13.

In the process of photosynthesis, which of the following energy conversions occur?

(a)

Solar energy is changed into chemical energy

(b)

Solar energy is changed into mechanical energy.

(c)

Bioenergy is converted into chemical energy

(d)

Chemical energy is changed into light energy.

14.

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as

(a)

heterotrophs

(b)

autotrophs

(c)

parasites

(d)

saprophytes

15.

The plant which traps and feeds on insects is

(a)

Cuscuta

(b)

China rose

(c)

pitcher plant

(d)

rose

16.

Amarbel is an example of

(a)

autotroph

(b)

parasite

(c)

saprotroph

(d)

host

True or False

2 x 1 = 2

17.

Food is necessary for plants only.

(a)

True

(b)

False

18.

Solar energy is converted into chemical energy during photosynthesis.

(a)

False

(b)

True

Generic 2

4 x 2 = 8

19.

Fungus can be harmful and useful. Give an example showing both of these traits of fungus.

20.

Algae are green in colour. Why?

21.

Which parts of the plant are called food factories of the plant?

22.

The tiny openings present on the leaf surface. What are they called?

Generic 5

2 x 5 = 10

23.

Wild animals like tiger, wolf, lion and leopard do not eat plants. Does this mean that they can survive without plants? Can you provide a suitable explanation?

24.

Describe the process by which plants prepare their food using different raw materials.

Visit QB365-SLMS - https://www.qb365.in/slms/

Answers Key:

Generic 3

6 x 3 = 18

The difference between autotrophs and heterotrophs are as follows

Autotrophs	Heterotrophs
They can prepare their own food.	They cannot prepare their own food.
Autotrophs take simple inorganic substances and change it into complex organic food, e.g. green plants.	They take in complex food and breakdown it into simple compounds, e.g. all animals, fungi and non-green plants.

Green plants are the source of energy for all the living organisms so that they can perform their normal functions. If all green plants and trees disappear, all the organism depending on them for food and shelter will also die.
The lack of gaseous exchange will lead to increase in amount of CO₂, causing death in humans and other animals also. The cycle of life will gradually disappear.

(a) Available in the plant: chlorophyll
(b) Available in the soil: water, minerals
(c) Available in the air: carbon dioxide
(d) Available during day: sunlight

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

The presence of starch, a carbohydrate in leaves can be tested by iodine test. Iodine turns starch solution into blue-black colour. Pour few drops of dilute iodine solution on a boiled leaf. The leaf becomes blue-black in colour which proves the presence of starch in it.

Differences between parasites and saprotrophs

Parasites	Saprotrophs
These are the organisms that live inside the body of another organism (host) and derive the food from it.	These are the organisms that feed on dead and decaying organic matter. They do not require any host
They harm the body of the host.	They are cleaning agents.
e.g. Cuscuta	e.g. Fungi

Fill up / 1 Marks

4 x 1 = 4

()
food factory

()
Saprophytic

()
carbon dioxide, oxygen

10.

autotrophs

1 Marks

2 x 1 = 2

11.

()
Stomata

12.

()
Pitcher plant (insectivorous plant)

Multiple Choice Question

4 x 1 = 4

13.

(a)
Solar energy is changed into chemical energy

14.

(b)
autotrophs

15.

16.

(b)
parasite

True or False

2 x 1 = 2

17.

(b)
False

18.

(a)
False

Generic 2

4 x 2 = 8

19.

Fungus produces antibiotics like penicillin used to treat diseases and fungus can also harm us by causing fungal infections on skin and hair.

20.

Algae contain chlorophyll which imparts green colour to them.

21.

Leaves are referred to as food factories of plants. This is because, leaves synthesise food by the process of photosynthesies.

22.

Stomata are the tiny pores present on the surface of leaves through which gaseous exchange takes place in plants.

Generic 5

2 x 5 = 10

23.

Animals like tiger, wolf, lion and leopard are carnivores and do not eat plants. They hunt and eat herbivorous animals like deer, gaur, bison, zebra, giraffe, etc., which are dependent on plants for food.
If there are no plants, herbivorous animals will not survive and ultimately animals like tiger, wolf, lion and leopard will have nothing to eat.

24.

The process by which green plants can prepare their own food is called photosynthesis. Green plants possess chlorophyll in their leaf and utilises carbon dioxide (from air) water, minerals (from soil, through root) as raw material and sunlight as source of energy and convert light energy into chemical energy. The food thus synthesied is in the form of starch (carbohydrate). The overall reaction for photosynthesis can be given as follows: