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21 Cards in this Set
- Front
- Back
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Age spots are due to
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an increase in the number of melanocytes.
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Necrosis is another name for:
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cell death
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The type of skin cancer that ranks second in incidence and develops in the outer layer of skin due to persistant sun exposure is:
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Squamous Cell Carcinoma
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Hayflick's Limit refers to the number of times that a cell can potentially:
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divide
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Programmed cell death is known as:
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apoptosis.
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p53 triggers ________ to protect the organism from mutations.
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apoptosis
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Vitamin E is an ____
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antioxidant
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an aging disorder where aging occurs at an unusually rapid rate is:
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Progeria.
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An injury that has been inflicted upon cells is known as
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necrosis
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It is healthier to have a higher level of which lipoprotein?
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HDL
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mammalian cells have a limit on the amount of times they can divide. This limit is known as:
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Hayflick's limit.
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Although ______ cannot be changed easily, ______ can be be changed with dietary restrictions.
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life span; life expectancy
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In the United States we have seen a steady increase in human
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life expectancy
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_________ succession begins with the first life forms to exist on a new inorganic land mass. _________ succession begins after the environment has been greatly disturbed killing many of the existing life in an area.
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primary; secondary
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What was the primary cause of death in humans during the early part of the twentieth century?
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Infectious diseases
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Apoptosis is:
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programmed cell death
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In patients that suffer from Alzheimer's, there is a buildup of which type of abnormal substance?
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protein
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An example of an aging disorder where there is premature and accelerated aging is:
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Werner's Syndrome.
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Which stage of sleep does your brain review and sort the knowledge that it has encountered during the day?
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REM
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There are many theories on why biological organisms age. Which of the following is one such theory?
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The regenerative power of tissue cells gradually declines with age.
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___________ is the average longevity of a population. It can vary with different populations, environments and historical periods.
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Life expectancy
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