ICSE ICSE Class 7 - CISCE Question Bank Solutions for Biology

Put a tick (✓ ) against the most appropriate alternative in the following statement.

Carbohydrates are stored by plants in the form of:

Put a tick (✓ ) against the most appropriate alternative in the following statement. 

Stomata are present on the surface of:

Put a tick (✓ ) against the most appropriate alternative in the following statement. 

Which one of the following is an end-product of photosynthesis?

Short answer question.

What is the source of energy for photosynthesis?

Write True (T) or False (F) for the following statement. Rewrite the false statement in the correct form. 

Removal of solid undigested food is excretion 

What are the two ways by which a person can get relief in case of kidney failure?

How are kidney stones formed? 

Draw a diagram of the human excretory system and label the following parts: Kidney, ureter, urinary bladder, and urethra. 

What are the symptoms of a urinary tract infection? 

Correct the sequence of the following steps to explain the process of urine formation.   

1. Blood enters the glomerulus under high pressure.
2. The filtrate passes through the thin walls of the Bowman’s capsule into the renal tubule
3. As the filtrate, passes through the tubule, water, and many useful substances are reabsorbed by the walls of the blood capillaries.
4. Water and small solutes are filtered in the Bowman’s capsule.
5. The remaining liquid, along with waste is called urine and is collected in the urinary bladder.
6. Blood containing waste material enters the kidneys through the renal artery.

Short answer question.

Why do leaves generally look green?

Short answer question.

Which four of the following are needed for photosynthesis in a leaf:
(i) Carbon dioxide:
(ii) Oxygen:
(iii) Nitrates :
(iv) Water:
(v) Chlorophyll:
(vi) Soil:
(vii) Light: 

Short answer question.

Which gas is taken in and which one is given out by the leaf in bright sunlight?  

(i) Taken in :
(ii) Given out:

Suppose we compare the leaf with a factory, match the items in Column A with those in Column B.

State whether the following statement is True or False: 

Green plants prepare their food by using two raw materials, oxygen and water.

State whether the following statement is True or False: 

The chlorophyll enables the plants to use light energy.

State whether the following statement is True or False: 

The free oxygen in the atmospheric air is the result of photosynthesis.

State whether the following statement is True or False:  

Photosynthesis occurs only in chlorophyll-containing parts of the plant. 

Long answer question.

In order to carry out photosynthesis, what are the substances that a plant must take in? Also mention their sources.

Long answer question.

What is the role of chlorophyll in photosynthesis?