Question 1

Discuss the free-radical theory of aging.

Accepted Answer

The free-radical theory of aging states ...

Question 2

On average, the adult brain loses ________ percent of its weight between the ages of 20 and 90.

Accepted Answer

A)   1 to 5
B)   5 to 10
C)   10 to 20
D)   20 to 30E) B) and C)
F) A) and D)

Question 3

Reductions in ________ have been linked to small declines in memory functioning and to the severe memory loss associated with Alzheimer disease.

Accepted Answer

A)   gamma-aminobutyric acid
B)   dopamine
C)   acetylcholine
D)   adrenalineE) A) and B)
F) None of the above

Question 4

According to cellular clock theory, after about 70 or 80 replications, the cell can no longer reproduce and the ________ are dramatically reduced.

Accepted Answer

A)   mitochondria
B)   telomeres
C)   chromosomes
D)   sperm cellsE) None of the above
F) All of the above

Question 5

________ are the most noticeable changes in physical appearance in late adulthood.

Accepted Answer

A)   Loss of hair and brittle nails
B)   Osteoporosis and osteoarthritis
C)   Reduction in height and weight
D)   Wrinkles and age spotsE) B) and D)
F) A) and D)

Question 6

Which of the following is a biological theory explaining aging?

Accepted Answer

A)   two-factor theory
B)   attachment theory
C)   mitochondrial theory
D)   reverse neurogenesis theoryE) None of the above
F) B) and C)

Question 7

Which disease of the eye is characterized by damage to the optic nerve because of the pressure created by a buildup of fluid in the eye?

Accepted Answer

The answer of Which disease of the eye is characterized...

Question 8

According to current projections, what is the expected number of U.S. centenarians by the year 2050?

Accepted Answer

A)   19,000
B)   77,000
C)   212,000
D)   600,000E) None of the above
F) A) and D)

Question 9

Which of the following is a characteristic of centenarians in the New England Centenarian Study (NECS) ?

Accepted Answer

A)   Most U.S. centenarians are likely to describe historical events, death/grief, and work/retirement events.
B)   Only a small percentage of centenarians have had significant changes in their thinking skills.
C)   Habitual smoking is common among centenarians.
D)   Most of the centenarians are obese.E) None of the above
F) All of the above

Question 10

Allen can be described as an average American. He is currently 65 years old. He is likely to live 18.4 more years. Hence, it can be said that Allen has a ________ of 83.4 years.

Accepted Answer

A)   mortality rate
B)   circadian rhythm
C)   cellular clock
D)   life expectancyE) A) and B)
F) A) and C)

Question 11

A recent study of older adults found that the greater the variability in their ________ attention, the more likely they were to experience falls.

Accepted Answer

A)   sustained
B)   selective
C)   divided
D)   executiveE) B) and C)
F) A) and D)

Question 12

In the context of work and aging, which of the following statements is true of older adults?

Accepted Answer

A)   When older adults engage in complex working tasks and challenging daily work activities, their cognitive functioning shows less age-related decrease.
B)   Employment gaps involving unemployment or sickness are associated with a lower risk of cognitive impairment in older adults.
C)   Working in a job with a high level of mental demands is linked to lower levels of cognitive functioning before retirement in older adults.
D)   For older adults who work in low-complexity jobs, experiencing novelty in their work is linked with a reduction in processing speed and working memory.E) A) and D)
F) All of the above

Question 13

According to the cellular clock theory of aging, cells can divide a maximum of

Accepted Answer

A)   50 to 60 times.
B)   65 to 70 times.
C)   75 to 80 times.
D)   80 to 100 times.E) B) and C)
F) None of the above

Question 14

Telomeres and telomerase are increasingly thought to be key components of the ________ process, providing a possible avenue to restrain cancer and delay aging.

Accepted Answer

A)   hormone production
B)   antibody proliferation
C)   free radical regeneration
D)   stem cell regenerationE) B) and C)
F) A) and D)

Exam 15: Physical and Cognitive Development in Late Adulthood

Telomeres and telomerase are increasingly thought to be key components of the ________ process, providing a possible avenue to restrain cancer and delay aging.

Correct Answer
verified

According to the cellular clock theory of aging, cells can divide a maximum of

Correct Answer
verified

Reductions in ________ have been linked to small declines in memory functioning and to the severe memory loss associated with Alzheimer disease.

Correct Answer
verified

In the context of work and aging, which of the following statements is true of older adults?

Correct Answer
verified

Discuss the free-radical theory of aging.

Correct Answer
verified
The free-radical theory of aging states ...
View Answer

Which of the following is a characteristic of centenarians in the New England Centenarian Study (NECS) ?

Correct Answer
verified

Allen can be described as an average American. He is currently 65 years old. He is likely to live 18.4 more years. Hence, it can be said that Allen has a ________ of 83.4 years.

Correct Answer
verified

On average, the adult brain loses ________ percent of its weight between the ages of 20 and 90.

Correct Answer
verified

A recent study of older adults found that the greater the variability in their ________ attention, the more likely they were to experience falls.

Correct Answer
verified

Which of the following is a biological theory explaining aging?

Correct Answer
verified

According to current projections, what is the expected number of U.S. centenarians by the year 2050?

Correct Answer
verified

Which disease of the eye is characterized by damage to the optic nerve because of the pressure created by a buildup of fluid in the eye?

Correct Answer
verified

________ are the most noticeable changes in physical appearance in late adulthood.

Correct Answer
verified

According to cellular clock theory, after about 70 or 80 replications, the cell can no longer reproduce and the ________ are dramatically reduced.

Correct Answer
verified

Exam 15: Physical and Cognitive Development in Late Adulthood

Telomeres and telomerase are increasingly thought to be key components of the ________ process, providing a possible avenue to restrain cancer and delay aging.

Correct AnswerverifiedShow Answer

According to the cellular clock theory of aging, cells can divide a maximum of

Correct AnswerverifiedShow Answer

Reductions in ________ have been linked to small declines in memory functioning and to the severe memory loss associated with Alzheimer disease.

Correct AnswerverifiedShow Answer

In the context of work and aging, which of the following statements is true of older adults?

Correct AnswerverifiedShow Answer

Discuss the free-radical theory of aging.

Correct AnswerverifiedThe free-radical theory of aging states ...View AnswerShow Answer

Which of the following is a characteristic of centenarians in the New England Centenarian Study (NECS) ?

Correct AnswerverifiedShow Answer

Allen can be described as an average American. He is currently 65 years old. He is likely to live 18.4 more years. Hence, it can be said that Allen has a ________ of 83.4 years.

Correct AnswerverifiedShow Answer

On average, the adult brain loses ________ percent of its weight between the ages of 20 and 90.

Correct AnswerverifiedShow Answer

A recent study of older adults found that the greater the variability in their ________ attention, the more likely they were to experience falls.

Correct AnswerverifiedShow Answer

Which of the following is a biological theory explaining aging?

Correct AnswerverifiedShow Answer

According to current projections, what is the expected number of U.S. centenarians by the year 2050?

Correct AnswerverifiedShow Answer

Which disease of the eye is characterized by damage to the optic nerve because of the pressure created by a buildup of fluid in the eye?

Correct AnswerverifiedShow Answer

________ are the most noticeable changes in physical appearance in late adulthood.

Correct AnswerverifiedShow Answer

According to cellular clock theory, after about 70 or 80 replications, the cell can no longer reproduce and the ________ are dramatically reduced.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The free-radical theory of aging states ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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