Hall: Guyton and Hall Textbook of Medical Physiology, 12th Edition
Chapter 71: Dietary Balances; Regulation of Feeding; Obesity and Starvation;
Vitamins and Minerals
Test Bank
1. A patient’s urinary nitrogen excretion is 10.0 grams in 24 hours. What is the approximate
amount of protein breakdown in this patient for 24 hours?
A. 10.0 g
B. 11.0 g
C. 24.0 g
D. 68.8 g
E. 78.5 g
2. If one’s respiratory quotient (RQ) was 0.8, which of the following conditions most likely
would drive the RQ towards 1.0?
A. Eating a stick of butter
B. Consumption of a protein supplementt
C. Prolonged fasting
D. Eating a bowl of Froot Loops (with skim milk)
3. Which of the following vitamins is water soluble?
A. E
B. A
C. B1 (thiamine)
D. D
4. Several vitamins presented in the text are involved DIRECTLY in the processes of
carbohydrate, lipid, and protein oxidative metabolism outlined in lecture. Which of the
following IS NOT one of those vitamins?
A. Riboflavin (B2)
B. Niacin (nicotinic acid)
C. Pantothenic acid
D. Folic acid
5. Laboratory tests for a 10-year-old boy reveal a fasting plasma glucose concentration of
300 mg/100 mL and he has large amounts glucose in his urine. He is diagnosed as having
Test Bank
71-2
type 1 diabetes and has not yet been treated with insulin. What would you expect his
respiratory quotient (RQ) to be one hour after eating a mixed meal containing
carbohydrates, fat, and protein?
A. 0.0
B. 0.5
C. 0.7
D. 0.8
E. 1.0
6. Which of the following changes would be expected to stimulate hunger is a person who
has to not eaten for 24 hours?
A. Increased neuropeptide Y in hypothalamus
B. Increased leptin secretion
C. Increased peptide YY secretion
D. Decreased ghrelin secretion
E. Activation of hypothalamic proopiomelanocortin (POMC) neurons
F. Increased cholecystokinin secretion
7. Deficiency of which of the following would cause pellagra in humans or black tongue in
canines?
A. Vitamin A
B. Vitamin B1
C. Vitamin B12
D. Vitamin C
E. Niacin