To break down complex food molecules into simple soluble molecules

To make complex food molecules from simple soluble molecules

To make use of simple soluble food molecules

To remove complex food molecules from the body

True

False

Protein digestion begins in the mouth.

Proteins are used for cell growth and repair.

Proteins are broken down to form amino acids.

Some complex proteins function as enzymes in the body.

liver

large intestine

stomach

small intestine

To break the food into even smaller pieces

To produce enzymes to digest food

To push food from the mouth into the stomach

To move the food back and forth in two directions

liver

mouth

oesophagus

stomach

large intestine

mouth

small intestine

stomach