Maternal blood vessels exchange nutrients and oxygen with the fetal vessels, and the fetal vessels deliver waste products for the maternal blood for
A) excretion. B) ingestion. C) absorption. D) digestion.
Answer: A
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The body uses amino acids extensively for energy when ____
a. protein stores run low b. there is inadequate glucose or fatty acids c. an athlete performs strength training exercises d. the body becomes dehydrated e. the body has excess water
For enzymes secreted into the intestinal tract to work best, the environment of the bowel needs to:
a. be acidic. b. be alkaline. c. secrete mucus. d. have motility.
The factor that has the largest influence on food choices for most people is:
1.culture. 2.level of hunger. 3.food preference. 4.education.
All of the following are dietary recommendations for breastfeeding women EXCEPT:
a. caloric intake should not fall below 1500 calories per day. b. alcohol intake should be avoided. c. at least 14 cups of fluids should be consumed per day. d. routine use of vitamin and mineral supplements is recommended.