The replacement of red blood cells and digestive tract cells depends most heavily on:
a. thiamin.
b. riboflavin.
c. niacin.
d. folate.
d
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How does oxalic acid affect calcium absorption?
A) can bind to calcium and prevent its absorption B) enhances calcium absorption C) enhances calcium utilization D) decreases serum calcium
The rate at which energy is used by the body when it is at complete rest is called:
a. sleeping metabolic rate. b. resting metabolic rate. c. fasting metabolic rate. d. body composition.
Nancy consumes fewer kcalories at 14 months than she did at 11 months. This change in appetite probably indicates that she is _____
a. ill and needs medical attention b. not as physically active now as when she was 11 months old c. in a less rapid stage of growth now d. becoming malnourished e. too picky and probably needs to be forced to eat more
When an athlete's maximal performance is desired, carbohydrates are a more efficient fuel than fat because ________.
A. carbohydrate is oxidized more rapidly than fatty acids B. more ATP is produced per unit of oxygen consumed C. muscles get used to using carbohydrate as a fuel D. we consume more carbohydrate than fat or protein