Collagen is an example of
A. a structural protein.
B. a catalytic protein.
C. a hormone.
D. an immune protein.
A
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A 75-year-old man was trying to live on a limited food budget. He asked for help reading the food label on a carton of calcium-fortified orange juice. What information would be important for him to know?
a. Older adults need more vitamin C than what is recommended on the label. b. If the label says one 8–oz serving meets the DV for calcium, then the gentleman would need almost 1.2 servings or 10 oz. c. The elderly man should try and consume the DV for energy, 2000 Calories. d. All of the above information would be important for him to know.
Under anaerobic conditions, muscle cells convert pyruvate to ________.
A. carbon monoxide B. vitamin D C. lactic acid D. alanine
Which mineral is contained in a preformed metallovitamin essential for humans that cannot be synthesized from dietary sources??
A) ?cobalt B) ?silicon C) ?nickel D) ?boron
Which of the following protects the alveoli from bacterial infection?
a. Ciliated-epithelial cells b. Scavenger cells c. Goblet cells d. Mucus