Iron is a component of _____ that serve as electron carriers in energy metabolism
a. hemoglobin molecules
b. antioxidant enzymes
c. cytochromes
d. mitochondria
c
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A hormone that is related to the amount of body fat is:
a. insulin. b. lipase. c. estrogen. d. leptin.
Betty is constipated; she generally has bowel movements only twice a week. To help relieve her constipation without taking medications, Betty should
A. restrict her fluid intake. B. reduce her intake of fruits and vegetables. C. increase her intake of foods that contain insoluble fiber. D. use colon cleansing enemas daily.
The weather over the winter was colder than usual, with typical days in the subzero temperature range and snow and ice common. Because of this, Drea was often cold and shivering when walking between classes. Shivering is an example of ________.
A. physical activity B. nonexercise activity thermogenesis C. basal metabolism D. the thermic effect of food
Bariatric surgery increases the risk that women will develop deficiencies of:
a. iron. b. zinc. c. calcium. d. vitamins B6, B12, and D. e. All of the above