Question

a) " During the process of preparation of an observation material a drop of glycerine is added in the slide ". What may be the reason behind that?

Answer 1

Explanation:

Glycerine is isotonic to the cell sap. Due to this, cells used for mount will not shrink or swell and can be seen in their natural form. Also, glycerine makes the mounted material moist and prevents it from drying out.