What does agar jelly for?

Agar jelly is used for a variety of purposes, including:

* In microbiology, agar jelly is used as a growth medium for microorganisms. Agar is a natural polysaccharide derived from red algae, and it is made up of agar and agarose. Agarose is a gelling agent that forms a firm gel when heated and cooled, and it provides a solid support for microorganisms to grow on.

* In food, agar jelly is used as a thickening agent and gelling agent. It is commonly used in jams, jellies, puddings, and other desserts. Agar jelly can also be used to make vegetarian "gelatin" desserts.

* In cosmetics, agar jelly is used as a thickening agent and gelling agent in products such as toothpaste, shaving creams, and deodorants. It can also be used as a binder in cosmetic powders.

* In photography, agar jelly is used as a suspending agent for silver halide crystals in photographic emulsions.