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, NU176 Geriatric Nursing Exam 2 | 50 Practice
Questions & Answers | Older Adult Care Exam
Review | 2026/2027 update.
Section 1: Aging Theories & Demographics (Questions
1-10)
1. According to the free radical theory of aging, what is the primary
mechanism of cellular aging?
A) Accumulation of genetic mutations
B) Oxidative damage from reactive oxygen species
C) Shortening of telomeres with each cell division
D) Declining hormonal function
Correct Answer: B
Rationale: The free radical theory proposes that aging results from
cumulative oxidative damage caused by reactive oxygen species (free
radicals) that damage cellular components including DNA, proteins, and
lipids.
2. Which theory of aging proposes that cells have a predetermined
number of divisions before they can no longer replicate?
A) Free radical theory
B) Cross-linkage theory
C) Hayflick limit theory
D) Wear-and-tear theory
Correct Answer: C
Rationale: The Hayflick limit theory states that cells have a genetically
determined limit to the number of times they can divide, after which they
enter senescence.
3. Which theory of aging suggests that aging is due to the
cumulative effects of random damage to cells over time?
A) Genetic theory
B) Immunity theory
C) Cross-linkage theory
D) Wear-and-tear theory
, NU176 Geriatric Nursing Exam 2 | 50 Practice
Questions & Answers | Older Adult Care Exam
Review | 2026/2027 update.
Section 1: Aging Theories & Demographics (Questions
1-10)
1. According to the free radical theory of aging, what is the primary
mechanism of cellular aging?
A) Accumulation of genetic mutations
B) Oxidative damage from reactive oxygen species
C) Shortening of telomeres with each cell division
D) Declining hormonal function
Correct Answer: B
Rationale: The free radical theory proposes that aging results from
cumulative oxidative damage caused by reactive oxygen species (free
radicals) that damage cellular components including DNA, proteins, and
lipids.
2. Which theory of aging proposes that cells have a predetermined
number of divisions before they can no longer replicate?
A) Free radical theory
B) Cross-linkage theory
C) Hayflick limit theory
D) Wear-and-tear theory
Correct Answer: C
Rationale: The Hayflick limit theory states that cells have a genetically
determined limit to the number of times they can divide, after which they
enter senescence.
3. Which theory of aging suggests that aging is due to the
cumulative effects of random damage to cells over time?
A) Genetic theory
B) Immunity theory
C) Cross-linkage theory
D) Wear-and-tear theory
