The role of hydrochloric acid in protein digestion is to
A. Break down polypeptide chains.
B. Denature the protein.
C. Slow peristalsis.
D. Stimulate production of digestive enzyme in pancreas.
Ans: B. Denature the protein.
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Answer the following questions true (T) or false (F)
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Measles and rubella are examples of which type of vaccine?
a. Live natural vaccines b. Inactivated vaccines c. Subunit vaccines d. Attenuated vaccines
Why is heart disease the major cause of death among women after menopause?
a. Because osteoporosis is so common and weakens the heart. b. Because women tend to eat more fat in their diets after they reach 55. c. Because low estrogen levels lower HDL and raise LDL. d. Because menopause leads to the overproduction of chylomicrons.
The four steps in the causation of cancer are:
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