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

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? 

Briefly explain how the rate of transpiration is affected by 

Intensity of light 

The diagram below represents a stage during cell division. Study the same and then answer the questions that follow: 

1. Name the parts labelled 1, 2, and 3.
2. Identify the above stage and give a reason to support your answer.
3. Mention where in the body this type of cell division occurs.
4. Name the stage prior to this stage and draw a diagram to represent the same.

Given below is a diagram representing a stage during mitotic cell division in an animal cell Examine it carefully and answer the questions which follow.

1. Identify the stage. Give one reason in support of your answer.
2. Name the cell organelle that forms the ‘aster’.
3. Name the parts labelled 1, 2 and 3.
4. Name the stage that follows the one shown above; how is that stage identified?
5. Mention two differences between mitosis and meiosis with regards to:
   1. The number of daughter cells produced.
   2. The chromosome number in the daughter cells.

Which part of the eye is grafted in a needy patient from a donated eye?

Name the following:

The photosensitive pigment present in the rods of the retina.

Name the following:

The eye defect caused due to shortening of the eye ball from front to back.

Differentiate between members of the following pair with reference to what is asked in bracket.

Myopia and hyperopia (cause of the defect)

Differentiate between members of the following pair with reference to what is asked in the bracket.

Rods and cones (sensitivity).

Name an old age eye defect. What happens in it?

What is meant by optical illusion? Give one example.

Describe the mechanism of focusing the image of a distant object in your eye when you raise your head after reading a book.

By closing the eyes and gently pressing them by your palms, you may see some specks of brilliant light. How do you get this sensation while there is no light entering your eyes?

Explain the terms ‘adaptation’ and ‘accommodation’ with reference to the eye.

You do not enjoy watching a movie from a very short distance from the screen in a cinema hall. Why?

Enumerate the common defects of vision, their causes and the possible methods of correcting them.