When the intake of ________ is low, vitamin E aids in its absorption.
A. iron
B. vitamin A
C. zinc
D. vitamin D
Answer: B
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Yvonne is running cross-country track for her college. Her coach recommends following the American College of Sports Medicine's specific recommendations for scheduling her fluid intake. What are these?
What will be an ideal response
The primary role of most of the B-vitamins is to
A) maintain acid-base balance. B) directly provide the body with energy. C) act as coenzymes. D) maintain and repair body tissues.
Your middle-aged aunt says that she always feels more "tipsy" than her same-size husband, even though their alcohol intake is the same. You respond by saying to your aunt:
a. "Men have greater amounts of liver acetaldehyde dehydrogenase and so can oxidize the alcohol at a faster rate." b. "Women have less stomach alcohol dehydrogenase enzyme and consequently absorb more of the alcohol into the bloodstream." c. "Men have greater amounts of alcohol dehydrogenase in the brain, resulting in reduced exposure of brain neurons to alcohol." d. "Women have less liver alcohol dehydrogenase and acetaldehyde dehydrogenase and so more alcohol is released into the systemic circulation."
When energy intake equals energy needs a person is in:
a. positive energy balance. b. energy balance. c. basal metabolism. d. negative energy balance.