how did the stain help in observation of cells? why do biologists use stains to study cells?

Question

please help

Answer 1

They use stains to see cells better. To illustrate this point, you should look at a gram stain slide vs. a hanging drop. The gram stain will be much easier to see than the clear hanging drop.

Answer 2

Stains are just colored chemicals that have the property of adhering to other chemicals selectively. By adding a specific stain that adheres to something of interest to you, you essentially highlight that thing under the microscope. That helps you to examine it better, see it in better contrast.

The selectivity of the adhering chemical is usually based on some chemical property of the targeted cells or surrounding tissues - depending on the degree of magnification. Different stains adhere to ("stain") different biological structures. The structures are different because they have different chemistry. So the stains just take advantage of the differences.

Answer 3

to help in the observation of cell stuctures contained inside the cell, just to make things clearer and easier to differentiate between one another