The kcalorie content of a food is not dependent on how much _____ it contains
a. carbohydrate
b. fat
c. water
d. protein
e. sugar
c
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Why, in part, is weight loss more successful with exercise and also after bypass surgery?
a. Ghrelin levels are relatively low b. Adiponectin levels are relatively high c. PYY release from the hypothalamus is suppressed d. Leptin release from subcutaneous fat stores is enhanced
The bacteria that usually inhabit the large intestine are prevented from backing up into the ileum by the action of the ________.
A. rectal sphincter B. pyloric sphincter C. sphincter of Oddi D. ileocecal sphincter
Which of the following is a true statement about the digestion and absorption of proteins?
A. Many whole proteins are absorbed by phagocytosis and enter the blood. B. Polypeptide chains are digested to yield individual amino acids, which can be absorbed into the blood. C. The products of protein digestion are first absorbed into the lymphatic system, which empties into the blood. D. Polypeptide chains are digested to yield dipeptides, which can be absorbed into the blood.
The RDA for calcium is higher for breastfeeding women than for non-pregnant, non-breastfeeding teens or for pregnant women
Indicate whether the statement is true or false