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N76 [4]
3 years ago
4

Which action is a physical change in digestion?

Biology
2 answers:
Black_prince [1.1K]3 years ago
8 0

Answer: mashing food with teeth

A physical change alters the physical structure of a matter. The shape and size of matter may change in this process, but no chemical change occurs. These changes are generally reversible. Mashing or mastication of food is the process in which food is crushed or grinded by teeth. This process brings a physical change in the food, but it's chemical composition remains the same.  

hram777 [196]3 years ago
5 0
Mashing food with your teeth because it is merely changing the physical form of food. Enzymes, absorbing, and salivation are all chemical changes due to the way they interact with food.
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