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

Three cylinders of potato were carefully dried on blotting paper and weighed. Each piece weighed 3 grams. Each one was placed in the beaker as shown below:

Answer the following questions:

1. After 48 hours, which potato cylinder would be the heaviest?
2. The movement of which substance is mainly responsible for the weight change in the potato cylinders?
3. Name and define the process which is responsible for the movement of the substance mentioned in answer (b).
4. Write specific names of the processes which occur in beakers B and C. [kinds of processes defined in answer (c)].
5. Would there be any difference in the weight of the potato cylinder in beaker A after 48 hours? Give reason.

The optimum temperature for the process of photosynthesis is ______.

Unwanted disturbing sound, even if it is music next door, is noise.

People routinely working in noisy places are not much affected by noise.

Define the following term:

Noise

The kind of lens required to correct Myopia

The diagram given below represents a certain stage of mitosis: 

1. Identify the stage of cell division.
2. Name the parts labelled A and B.
3. What is the unique feature observed in this stage?
4. How many daughter cells are formed from this type of cell division?

the biological/technical terms for the lens of eye losing flexibility resulting in a kind of long-sightedness in middle aged people.

The diagram given below represents a stage during cell division.

Study the same and answer the questions that follow:

1. Identify whether it is a plant cell or an animal cell. Give a reason in support of your answer.
2. Name the stage depicted in the diagram. What is the unique feature observed in this stage?
3. Name the type of cell division that occurs during:
   1. Replacement of old leaves by new ones
   2. Formation of gametes
4. What is the stage that comes before the stage shown in the diagram?
5. Draw a neat, labelled diagram of the stage mentioned in (iv) above keeping the chromosome number constant.

Transpiration pull will be maximum under which set of the following conditions?

Transpiration helps in creating ______ force and in eliminating excess ______.

Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following: 

Thick cuticle and ……………………….. 

(a) State whether the following statement are True or False.

(b) Rewrite the false statement in (a) above in the correct form by changing either the first or the last word only.

Transpiration creates a pull for the upward movement of the sap.

(a) State whether the following statements are True Or False? 

(b) Rewrite the false statements,in the correct form by changing either the first or the last word only .

Voltmeter is an instrument used for measuring the rate of transpiration in green plants. 

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Hydathodes are similar to stomata in plant physiology. 

Which of the following statements are true and which ones are false? Give reason in support of your answer.

Atmospheric humidity promotes transpiration from a green plant.  

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Some desert plants have sunked stomata on their leaves. 

Which of the following statements are true and which ones are false? Give reason in support of your answer. 

Most transpiration occurs during midday.

Why are the stomata in most plants more numerous on the lower surface of a leaf instead of being on the upper surface? 

Suppose you have a small rose plant growing in a pot. How would you demonstrate transpiration in it?