The Process of Digestion

Multiple Choice

Where does enzymatic action begin?

• In the esophagus, while food passes through to the stomach

• In the bladder with several enzymes that come from the liver

• In the mouth, when one particular enzyme is secreted

Multiple Choice

Which is the physical function of the stomach?

• The walls secrete mucus

• The walls move in contractions order to secrete enzymes and churn the food

• The walls produce peristalsis

Multiple Choice

Why is “pepsin” important in the process of digestion?

• Pepsin creates a chemical reaction which produces movement of the stomach

• Pepsin is a powerful enzyme which begins the process of digestion

• Pepsin is an enzyme which converts proteins into amino acids

Multiple Choice

What are faeces and where do they originate?

• Feaces are food waste which originates in the small intestine

• Faeces are food waste which pass on in a liquid state to the large intestine

• Faeces are undigested food which originates in the small intestine

Multiple Choice

Where do proteins break down?

• Proteins break down in the mouth due to Pepsin and its powerful chemical reactions

• Proteins never break down completely

• Proteins start breaking down in the stomach and finish in the small intestine