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Physical and chemical digestion.

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Please define "physical digestion". How does it differ from chemical digestion. Does the stomach do just physical, or both physical and chemical?

What acids does the stomach secrete and what is the general pH of the stomach?

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Please define "physical digestion". How does it differ from chemical digestion. Does the stomach do just physical, or both physical and chemical?

What acids does the stomach secrete and what is the general pH of the stomach?

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Physical digestion is when food is broken down my mastication, churning and emulsification. Mastication refers to biting and chewing with the teeth. Churning refers to the digestion ...

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