Question : 41. According to the rate-of-living theory of aging, slowing down _______________ : 1175981

 

 

41.

According to the rate-of-living theory of aging, slowing down _______________ should increase the life span.

A.

the rate of cell division

B.

metabolism

C.

the decline of free radicals

D.

hormonal activity

 

 

 

42.

All of the following are considered variable-rate theories of aging EXCEPT

A.

programmed senescence theory

B.

wear-and-tear theory

C.

free-radical theory

D.

autoimmune theory

 

 

 

43.

Research on antioxidants as means to combat the negative effects of free radicals has

A.

revealed a moderate increase in longevity in individuals who used antioxidant supplements.

B.

revealed no significant changes in longevity in individuals who used antioxidant supplements.

C.

revealed no significant improvement and identified some negative effect in individuals who used antioxidant supplements.

D.

not been studied in depth.

 

 

 

44.

Melissa does not worry too much about eating right or exercising, because she believes those behaviors will have little impact on how she ages. According to your text, in terms of aging theories, Melissa favors

A.

the genetic-programming theory.

B.

the variable-rate theory.

C.

Erikson’s psychosocial theory.

D.

None of these

 

 

 

45.

Research on centenarians has discovered three alternative patterns in the health histories. Which of the following is NOT one those patterns discussed in your text?

A.

Survivors

B.

Escapers

C.

Delayers

D.

Revivers

 

 

 

46.

Recent research concerning the maximum human life span suggests that

A.

it appears that 126 may be the maximum life span based upon mathematical models.

B.

environmental toxins are slowly lowering the maximum age that people can achieve.

C.

the upper limit appears to be 100 years.

D.

increasing one’s caloric intake may greatly extend the life span.

 

 

 

47.

The finding that human cells can divide about 50 times before they stop dividing and die is called the

A.

survival curve.

B.

tertiary boundary.

C.

reserve limit.

D.

Hayflick limit.

 

 

 

48.

The survival curve, the biological limit to the life span, demonstrates that

A.

regardless of health and fitness, the maximum life span is not much higher than 80 years of age.

B.

the rate of mortality decreases after 100.

C.

the rate of mortality is significantly higher after 80.

D.

mortality rates are dependent on too many factors to predict survival.

 

 

 

49.

Generalizing from the text, what might be the single most important thing people can do to increase their life span?

A.

Eat less

B.

Drink more water

C.

Increase insulin levels

D.

Decrease antioxidants in the diet

 

 

 

50.

After reading a study about monkeys who were placed on systematic dietary restrictions, Mario restricted his own diet, hoping to replicate all of the following results EXCEPT

A.

lower body fat.

B.

low blood pressure.

C.

improved cardiac function.

D.

increased sexual performance.

 

 

 

 

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