In humans, somatic cells have ____ chromosomes, while reproductive cells (gametes) have ____.
A. 23; 46
B. 92; 46
C. 46; 23
D. 46; 69
E. 92; 23
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Question 2) Increased lipid deposits in the tunica intima of large arteries is called
A. atherosclerosis.
B. arteriosclerosis.
C. a thrombus.
D. an embolus.
E. hardening of the arteries.
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Question 3) Many gerontologists refer to walking as one of the most important anti-aging activities to prolong life. This is because a daily 30-minute walk
A. increases blood pressure.
B. improves circulation.
C. promotes anaerobic metabolism.
D. increases urine output.
E. increases peripheral resistance.
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Question 4) Autoimmune diseases such as arthritis become more common as people get older. Autoimmune means that the immune system
A. no longer produces antibodies.
B. destroys the body's own tissues.
C. is incapable of initiating phagocytosis.
D. produces T cells but no B cells.
E. protects itself.
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Question 5) Which of the following vitamins are thought to play a role in decreasing the physiological changes in aging?
A. vitamins A and B12
B. vitamins A and B6
C. vitamins E and C
D. vitamins A and D
E. vitamins A and K
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Question 6) Premature aging is called
A. progeria.
B. lactation.
C. parturition.
D. Alzheimer's disease.
E. dementia.
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Question 7) Decreased renal filtration that occurs with aging can be the result of
A. increased respiratory effort.
B. decreased cardiac output.
C. increased fluid volume.
D. decreased ADH secretion.
E. decreased peripheral resistance.
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Question 8) The onset of puberty is signaled by
A. a growth spurt.
B. emotional upheaval.
C. attainment of full adult stature.
D. the ability to obtain a drivers license.
E. a halt to growth.
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Question 9) Puberty in females occurs _____ than in males.
A. earlier
B. later
C. at the same time
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Question 10) Muscle strength peaks in a(n)
A. child.
B. adolescent.
C. young adult.
D. middle aged adult.
E. elderly adult.
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