Gero Exam 1: Ch 1-4 Eliopoulos Questions With Certified Answers
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Gero 1: Ch 1-4 Eliopoulos
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Gero 1: Ch 1-4 Eliopoulos
Gero Exam 1: Ch 1-4 Eliopoulos Questions With Certified Answers
Cross-Linking Theory of Aging - Answer-Proposes that cellular division is threatened as a result of radiation or a chemical reaction in which a cross-linking agent attaches itself to a DNA strand and prevents normal parting of the s...
Gero Exam 1: Ch 1-4 Eliopoulos
Questions With Certified Answers
Cross-Linking Theory of Aging - Answer-Proposes that cellular division is threatened as
a result of radiation or a chemical reaction in which a cross-linking agent attaches itself
to a DNA strand and prevents normal parting of the strands during mitosis.
/.Free Radicals & Lipofuscin Theories - Answer-Suggests that aging is due to oxidative
metabolism and the effects of free radicals. This creates a product of oxidation that can
only be seen under a fluorescent microscope. Accumulation of this pigment interferes
with diffusion and transport of essential metabolites and information-bearing molecules
in the cells.
/.Wear & Tear Theories - Answer-Attribute aging to the repeated use and injury of the
body over time as it performs its highly specialized functions.
/.Evolutionary Theories - Answer-Hypothesize that the differences in the aging process
and longevity of various species occur due to interplay between the processes of
mutation and natural selection.
/.Apoptosis - Answer-Programmed cell death that is part of the normal development
process that continues throughout life.
/.Autoimmune Reactions - Answer-Changes in immune function with aging.
/.Neuroendocrine & Neurochemical Theories - Answer-Changes in the brain and
endocrine glands that promote aging.
/.Radiation Theories - Answer-Radiation may induce cellular mutations that promote
aging (i.e., sun exposure-->cancer)
/.Nutrition Theories - Answer-Deficiencies of vitamins and nutrients as well as obesity
promote the aging process.
/.Environmental Theories - Answer-Things in our environment such as smoking, lead
exposure, ingestion of mercury, pesticides, crowded living conditions, and high noise
levels influence how we age.
/.Disengagement Theory - Answer-Views aging as a process in which society and the
individual gradually withdraw, or disengage from each other to mutual satisfaction and
benefit of both.
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