Digestion of carbohydrates

The primary goal of carbohydrate digestion is to convert

• protein to glucose

• glucose to protein

• poly- and disacharides to monosacharides and then to glucose.

• glucose to fiber and starch.

Which of the following enzymes, involved in breaking down carbohydrates, is found in the mouth?

• lactase

• maltase

• pancreatic amylase

• salivary amylase

The majority of carbohydrate digestion and absorption occurs in the _______________.

• mouth

• stomach

• small intestine

• large intestine

Lactose intolerance is due to a(n)

• deficiency of lactose

• deficiency of lactase

• deficiency of the GI flora

• allergy to casein (milk protein)

Symptoms of lactose intolerance include

• Bad breath

• diarrhea

• gastroesophageal reflux

• hives

Yogurt is tolerated better than milk by many lactase-deficient people because;

• yoghurt has no lactose

• it has a thicker consistency

• yoghurt is acidic

• bacteria in yoghurt breaks down lactose