HARD
7th CBSE
IMPORTANT
Earn 100

The sun provides energy for all living things. Rita wrote two statements to explain the above fact.
Statement1: All autotrophs prepare their own food in the presence of sunlight.

Statement 2: _____

What of the following should be Statement 2?
 

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Important Questions on Nutrition in Plants

HARD
7th CBSE
IMPORTANT

The mechanism by which green plants produce their food is seen in the image below. There are three components of the process: A, B, and C.
What the plant absorbs and releases is shown by the direction of the arrows.
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What do A, B and C stand for in the picture above?

HARD
7th CBSE
IMPORTANT

Sunita wants to know if a red colour plant can produce its own food o not. For four days, she keeps a red plant in the sun. Which other colour of plant should Sunita use for her research in order to contrast with the red plant? Explain your response.

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HARD
7th CBSE
IMPORTANT

Question ImageThe banyan tree is a large, long-lived, fast-growing evergreen tree up to 20-25m tall. From the above image, we can see some banyan seedlings growing near the large banyan tree. Seedling A is a little far from seedling B. Give reasons why seedling B may not grow as well as seedling A.

HARD
7th CBSE
IMPORTANT

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Identify the "X" from the given image and write the consequences if it is absent in a plant cell.

HARD
7th CBSE
IMPORTANT

The image below displays fungi that resemble threads and are found close to some plants. The roots of the plant are encircled and pierced by the fungi. It aids the plant's ability to absorb water and minerals from the soil. The fungi receive carbohydrates from the plant. An organism known as a parasite inhabits or grows on the body of another organism. It takes nutrients and energy from the host organism. The parasite does not provide its host with anything in return. Is the group of fungi in the image a kind of parasite? Explain your answer.

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HARD
7th CBSE
IMPORTANT
The way an organism obtains and utilizes food sources is called the mode of nutrition. Modes of nutrition fall into two categories: autotrophs and heterotrophs. Autotrophs make their own food from inorganic compounds. Heterotrophs obtain food from other organisms. Rita discovered a new plant species that is non-green and is found on the green plants. What she will classify it as-a parasite or an insectivorous plant? Why?
HARD
7th CBSE
IMPORTANT

Nilam took a destarched potted plant and set up an experiment as shown in the figure. She left the plant in sunlight for a few hours and then tested leaves A and B for starch. Leaf A did not give a starch test, while leaf B showed the presence of starch. What is proved by this experiment?

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HARD
7th CBSE
IMPORTANT

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Refer to the given figure. It illustrates