Ultraviolet rays react with _____ in the skin to begin the process of forming vitamin D.
A. 7-dehydrocholesterol
B. calcitriol
C. calcidiol
D. cholecalciferol
Ans: A. 7-dehydrocholesterol
You might also like to view...
A child known to be allergic to peanuts who begins to show signs such as difficulty breathing, swelling of the tongue, and severe abdominal discomfort is most likely in immediate need of a life-saving injection of
a. cortisone. b. serotonin. c. epinephrine. d. acetylcholine.
All of the following are true regarding food preferences EXCEPT:
a. people with a high sensitivity to bitter tastes tend to like cabbage and Brussels sprouts. b. they are largely learned. c. there are over 80 genes that help people taste bitter foods. d. a genetic tendency to avoid bitter vegetables may be linked to disease development.
as many as... % of all cancers may be diet related
What will be an ideal response?
Identify an effect of dehydration.
a. Increased sodium excretion b. Increased heart rate c. Decreased use of muscle glycogen d. Decreased core temperature