(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Name the following:

The organisms that can be called "natural purifiers" of the air.

Name the following:

The tissue that transports manufactured type of starch from leaves to all parts of the plants.

Mention one difference between the following on the basis of what is given in bracket.

Respiration and photosynthesis (gas released)

Mention one difference between the following on the basis of what is given in bracket.

Producers and consumers (mode of nutrition)

Mention one difference between the following on the basis of what is given in bracket.

Grass and grasshopper (mode of nutrition)

Identify the false statements and rewrite them correctly by changing the first or last word only.

Immediate product of photosynthesis is glucose.

Identify the false statement and rewrite it correctly by changing the first or last word only.

Green plants are consumers.

Identify the false statement and rewrite it correctly by changing the first or last word only.

Green plants perform photosynthesis.

Identify the false statements and rewrite them correctly by changing the first or last word only.

Algae are autotrophs.

The site of light reaction in the cells of a leaf is ______.

Are the following statement true or false? Give a reason in support of your answer.

The rate of photosynthesis continues to rise as long as the intensity of light rises.

Are the following statement true or false? Give a reason in support of your answer.

If you immerse a leaf intact on the plant in ice cold water, it will continue to photosynthesise in bright sunshine.

Are the following statement true or false? Give reason in support of your answer.

The starting point of carbon cycle is the release of carbon dioxide by animals during respiration.

Are the following statement true or false? Give a reason in support of your answer.

Photosynthesis is considered as a process supporting all life on earth.

"Oxygen is a waste product of photosynthesis." Comment.

Complete the following food chains by writing the names of appropriate organisms in the blanks:

Grass → ______ → Snake → ______

Complete the following food chains by writing the names of appropriate organisms in the blanks:

______ → Mouse ______ → Peacock

A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.

What aspect of photosynthesis was being investigated?

A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.

Is there any control in this experiment? If so, state it.

A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.

Why was the plant kept in the dark before the experiment?