Question

Why are plants and animals specimens usually stained with dyes before observing them through a microscope? Name one stain(or dye) used for this purpose.

Answer 1

Plants and animals specimens are stained with dyes before observing them through a microscope because cells appear transparent under the microscope and to make the internal organelles and other structures clearly visible, different stains or dyes are used for different parts of the cells. For example, safranin and methylene blue are used to stain the nucleus.