What joke does bile digest fat belong to?

Physical digestion is a physical reaction, which becomes a water-in-oil phenomenon.

Biology class says bile can emulsify fat.

Emulsification is actually a phenomenon that oil molecules and water molecules are mutually inclusive. There are two types: (1) water-in-oil type, in which oil molecules wrap water molecules; And (2) an oil-in-water type in which water molecules encapsulate oil molecules.

What is an emulsifier?

A: There is a substance that can make oil and water into a relatively stable emulsion, which is difficult to separate. This process is called emulsification, and the substance that can wait for oil and water to become emulsion is called emulsifier.

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