Chapter 65: Digestion and Absorption in the Gastrointestinal Tract and Chapter 66: Physiology of Gastrointestinal Disorders

Chapter 65: Digestion and Absorption in the Gastrointestinal Tract and Chapter 66: Physiology of Gastrointestinal Disorders

Complete Chapter Questions With Answers

Sample Questions Are Posted Below

1. A 35-year-old woman adds lots of high-fiber wheat and bran foods to her diet to reduce her cholesterol level. She had avoided eating wheat or rye foods since she was a child because her mother said they would make her sick. She loses 30 pounds on her new diet, but it has a number of undesirable side effects (i.e., stomach cramps, gas, and frequent diarrhea). She has also become weaker, finding it difficult to complete her morning walks. Her gastroenterologist diagnosed a malabsorption syndrome called gluten enteropathy or celiac disease (often referred to as celiac sprue). Which of the following is most likely to be increased in this woman?

1. Blood hemoglobin concentration
2. Carbohydrate absorption
3. Protein absorption
4. Serum calcium
5. Serum prothrombin
6. Stool fat

ANS: F

2. What is the major form by which triglycerides are transported in lymph?

1. Apoproteins
2. Chylomicrons
3. Emulsified fat globules
4. Free triglycerides
5. Micelles

ANS: B

3. Which of the following substances is digested only at the brush border of the small intestine by brush border enzymes?

1. Alanine
2. Glucose polymers
3. Lactose
4. Polypeptides
5. Triglycerides

ANS: C

4. Which of the following enzymes normally activates a proteolytic enzyme in the stomach?

1. Carboxypeptidase
2. Lipase
3. Pepsin
4. Sucrase
5. Trypsin

ANS: C