Question

These points for mounting the leaf peel were noted by a student

(i) The leaf peel should be big.

(ii) The leaf peel should be dry/dried.

(iii) Air bubbles should not be present while mounting the material.

(iv) Material should be stained by glycerine.

Which point noted by the student is incorrect/wrong?

• A. (i)
• B. (ii)
• C. (i), (ii), (iv)
• D. (iii)

Answer 1

The correct option is C

(i), (ii), (iv)

The correct option is (C)

Explanation for the correct option:

1. During an experiment, the student must be careful about the noted points.
2. The leaf peel is viewed under a microscope, and the size of the peel is not noted.
3. Glycerine is not used as a staining agent.
4. The leaf peel must not be dried before the experiment.

Explanation for incorrect options:

Option (A)

1. The experiment involves viewing the leaf peel under a microscope.
2. Thus, there is no need to have a large peel section as a small leaf peel world works fine.

Option (B)

1. Drying would kill the cells by evaporating all their water content.
2. Therefore, leaf peel should not be dried for the experiment.

Option (D)

1. Glycerine is not a stain and is used to prevent the specimen from drying and get a clear image under the microscope.

Thus, the students should know that air bubbles should not be present while mounting the material.