Of all the roles proteins play in the body, which one has the highest priority?
a. growth and maintenance
b. energy
c. fluid balance
d. transportation
e. hormones
b
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People should consume at least _____ servings of fruits and vegetables a day to obtain an assortment of vitamins
a. three b. four c. five d. six e. seven
The vitamin supplement that is considered to have the lowest risk but highest benefit is:
a. vitamin A. b. retinol. c. folic acid. d. vitamin B12.
Parathyroid hormone elevates blood calcium levels by
A. reducing calcium excretion by the kidneys. B. increasing bone resorption by osteoclast activity. C. increasing the synthesis of 1,25 (OH)2 vitamin D. D. All of the choices are accurate.
Which molecule(s) is/are an acidic, fat-related compound(s) formed from the incomplete breakdown of fat when carbohydrate is not available?
a. amino acids b. pyruvate c. carbon dioxide d. ketone bodies e. ammonia and urea