3E2 Nutrition in humans RECAP

 

Which enzyme does the stomach produce?

• lipase

• protease

• maltase

• amylase

Protein digestion starts in the mouth.

• True

• False

Select all the functions of the stomach.

• Physical digestion occurs in the stomach via peristalsis.

• Pepsinogen breaks down proteins to polypeptides.

• The acidic environment in the stomach kills harmful microorganisms in food.

• The partly digested food becomes liquefied, forming chyme.

Chemical digestion occurs in the

The name of the protease found in the stomach is

The pH medium in the small intestine is

• acidic

• alkaline

• neutral

This substance helps to protect the stomach from digesting itself.

• hydrochloric acid

• pepsin

• mucus

• renin

Carbohydrate digestion starts in the

Which of the following statement about fat digestion is incorrect?

• Fat digestion begins in the small intestine.

• Bile catalyses the break down of fat into fatty acid and glycerol.

• Bile is stored temporarily in the pancreas.

• Fat digestion is a form of hydrolytic reaction.

In the small intestines, pancreatic and intestinal juice are secreted. State the enzymes present in intestinal juice. (Hint: SMELL)