Problemset
Title
Multiple Choice
Introductory
Text
Question 1
A major difference between programmed and unprogrammed theories of senescence is
that programmed theories
Type:
Hint:
Multiple Choice
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incorrect
answers:
Answer
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Attribute senescence only to environmental factors
Incorrect
Are far too difficulty to test
Incorrect
Claim that senescence follows a predetermined plan
Correct
Rely too heavily on computer models
Incorrect
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Question 2
In this chapter's Senior View, Martha Steward says that theories are very wrong if they
claim that
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Question 3
Answer
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Everyone gets sick when they get old
Correct
Our fates are in the hands of powerful other
Incorrect
You can avoid senescence
Incorrect
There is no upper limit on life span
Incorrect
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With respect to theories of senescence, it's probably safe to say that
Hint:
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Multiple Choice
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Programmed theories are the best we have at present
Incorrect
Many theories will have to be combined to explain senescence
Correct
The evidence for these theories is direct and quickly accumulating Incorrect
All of these theories are merely speculation at this point
Question 4
Incorrect
The Hayflick number for human cells is
Hint:
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Unknown
Incorrect
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Question 5
Between 45 and 55
Correct
Less than 30
Incorrect
More than 60
Incorrect
Cells taken from a body and grown in a nutritional and protected culture will
Hint:
Type:
Multiple Choice
Question 6
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Never stop dividing
Incorrect
Stop dividing when their telomere strands are gone
Correct
Never divide
Incorrect
Show no senescence
Incorrect
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A major difference between cancer cells and normal cells is that
Hint:
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Multiple Choice
Question 7
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Cancer cells have no telomere strands
Incorrect
Normal cells become cancerous when their telomere strands are
used up
Incorrect
Cancer cells have no upper limit on cell division
Correct
Normal cells are protected from cancer when they have
telomerase
Incorrect
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One line of evidence against antagonistic pleiotropy is that
Hint:
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Multiple Choice
Question 8
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Women who have more children tend to live longer
Correct
Some animals show little or no senescence
Incorrect
Even tissue cells with longer telomere strands can show
senescence
Incorrect
Exercise increases rather than decreases longevity
Incorrect
Multiple Choice
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Our bodies have a natural, built in defense against free radicals that is referred to as
Hint:
Type:
What exactly is antagonistic pleiotropy?
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Question 9
Answer
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AFR
Incorrect
SOD
Correct
Vitamin C
Incorrect
Telomerase
Incorrect
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Which of the following is an anti-oxidant?
Hint:
Type:
Multiple Choice
Question 10
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Vitamin E
Correct
Vitamin K
Incorrect
Vitamin B
Incorrect
Vitamin X
Incorrect
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Which of the following hormones has not yet been claimed to ward off senescence?
Hint:
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Multiple Choice
Question 11
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DHEA
Incorrect
Human growth hormone
Incorrect
Melatonin
Incorrect
Viasterol
Correct
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The initial length of telomere stand for members of a species is
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Question 12
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Always the same
Incorrect
Determined genetically
Correct
Dependent upon climate and time of year at birth
Incorrect
Determined by parent diet and exercise
Incorrect
Free radicals are produced by
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Question 13
Normal metabolism
Correct
Excess consumption of Vitamins A
and C
Incorrect
Lack of sunlight
Incorrect
A weakened immune system
Incorrect
These vitamins help eliminate free
radicals
Which of the following is an example of accumulating garbage?
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Raw glucose
Incorrect
Lipofuscin
Correct
Collagen
Incorrect
SOD
Incorrect
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Question 14
DNA damage/repair theory claims that senescence is due to cells getting incorrect
instructions from DNA damaged by sources such as
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Question 15
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Radiation from anti-oxidants
Incorrect
Anti-oxidants are not sources of radiation
Metabolic processes
Incorrect
Free radicals and sunlight
Correct
Telomerase
Incorrect
A problem for immune system theories of senescence is
Hint:
Type:
Multiple Choice
Question 16
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Determining what first causes the senescence in the
immune system
Correct
Auto-immune disorders are far too rare
Incorrect
That the immune system does not decline with age
Incorrect
The lack of information about senescence in general
Incorrect
Multiple Choice
They're all too
frequent
The least favored theory of senescence among researchers is the _____ theory
Hint:
Type:
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answers:
Answer
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Free radical
Incorrect
Biological clock
Incorrect
Wear and tear
Correct
Garbage accumulation
Incorrect
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