Which of the following correctly describes the glucose-alanine cycle?
a. Muscle converts alanine to glucose for use as immediate energy.
b. Muscle converts alanine to pyruvate or lactate and converts them to glucose when muscle glycogen stores are low.
c. Glucose is converted to alanine in the muscle in the post-exercise period.
d. Muscle converts pyruvate to alanine, which is transported to the liver for potential conversion to glucose.
d
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When you exercise, your body uses glycogen to maintain blood glucose levels. Which vitamin acts as a coenzyme during this process?
A. folate B. vitamin B12 C. vitamin B6 D. biotin
How does fluoride protect against dental caries (cavities)?
A. decreases and reverses tooth demineralization B. inhibits bone modeling C. speeds up metabolism of acid-producing bacteria D. decreases tooth mineralization
Chromium deficiency is characterized by
a. hypertension. b. hyperglycemia. c. enlargement of the liver. d. enlargement of the thyroid gland. e. hyperparathyroidism
Jack has just returned from the hospital where his father is recovering from a heart attack. The doctors told Jack that his dad's atherosclerosis is very serious. Jack and his wife, Melanie, are worried about Jack's father and also are starting to think about Jack's risk of having heart disease in his lifetime. He sets up an appointment at his doctor's office and has his blood lipid levels
evaluated for the first time. Let's see if you can answer some of the questions that Jack and Melanie have.Because he is now better informed, Jack wants to cook healthier meals. Which recommendation should he avoid? a. Use fruit jam instead of margarine on toast. b. Use applesauce instead of butter when baking brownies. c. Eat salmon and herring twice per week. d. Have no more than three alcoholic drinks per day. e. Drink fat-free or low fat milk.