biological ageing "senescence" - ANSWER complex genetically regulated
interactive process of change in every living organism
Cellular functioning - ANSWER changes to cells that decrease the ability to
replicate attributed to ageing, especially the mitochondria
Major biological questions related to aging - ANSWER What triggers changes
at the cellular or organ level?
Can it be stopped or modulated?
Is aging orderly and predictable, or random and chaotic?
What is the relationship between epigenetics and the environment?
cellular function and ageing - ANSWER Cellular replication (mitosis) is
critical to survival
Genetic components of DNA and RNA serve as templates for cellular
reproduction
Integrity of the genetic code implies that new cells have the same form and
function as the old cells
Organisms are destined to become more complex over time
Programmed Aging Therories - ANSWER Cells have limited replication
Suggest that aging is the result of predictable cellular death
Cells and organisms have a genetically predetermined life span known as the
"Hayflick limit" or biological clock
Advances in cellular science are eclipsing this theory
Error Theories - ANSWER Based on changes at the cellular level are random
and unpredictable
types of error theories
What are the different types of error theories? - ANSWER -wear and tear
-oxidative stress
-free radical- cells you can
-control by having different health habits
, -mutations- experience mutations causing errors in our cells
-telomeres and aging- strands ends of cells, they erode over time
autoimmune theory *** - ANSWER -aging is a programmed accumulation of
damage and decline in the function of the immune system-
"immunosenescence"
-decreased ability of lymphocytes to withstand oxidative stress
-t cells thought to be responsible for increasing age-related autoimmune
disorders
Psychosocial Theories of Aging - ANSWER Persons are multidimensional
life considered in totality to understanding aging
First generation
Second generation
Third generation
First generation - ANSWER explain and predict changes in middle and late
life, focusing on adjustment
Second generation - ANSWER expanded and built upon first generation
theories "alternative theoretical perspectives"
Third generation - ANSWER understanding the human meaning of social life
in context to everyday life
Activity Theory (First generation) - ANSWER Continued activity and the
ability to "stay young" indicated successful aging
-attempted to predict and explain how individuals adjusted to age-related
changes by looking at one's level of activity and productivity
-popular because it is consistent with Western society's emphasis on work,
wealth, and productivity
Disengagement Theory (second generation) - ANSWER -Withdrawal of elders
from their roles and activities earlier in life necessary to allow transfer of power
to younger generations
-Probably provided the basis for age discrimination
-elder participation is now considered beneficial to society
interactive process of change in every living organism
Cellular functioning - ANSWER changes to cells that decrease the ability to
replicate attributed to ageing, especially the mitochondria
Major biological questions related to aging - ANSWER What triggers changes
at the cellular or organ level?
Can it be stopped or modulated?
Is aging orderly and predictable, or random and chaotic?
What is the relationship between epigenetics and the environment?
cellular function and ageing - ANSWER Cellular replication (mitosis) is
critical to survival
Genetic components of DNA and RNA serve as templates for cellular
reproduction
Integrity of the genetic code implies that new cells have the same form and
function as the old cells
Organisms are destined to become more complex over time
Programmed Aging Therories - ANSWER Cells have limited replication
Suggest that aging is the result of predictable cellular death
Cells and organisms have a genetically predetermined life span known as the
"Hayflick limit" or biological clock
Advances in cellular science are eclipsing this theory
Error Theories - ANSWER Based on changes at the cellular level are random
and unpredictable
types of error theories
What are the different types of error theories? - ANSWER -wear and tear
-oxidative stress
-free radical- cells you can
-control by having different health habits
, -mutations- experience mutations causing errors in our cells
-telomeres and aging- strands ends of cells, they erode over time
autoimmune theory *** - ANSWER -aging is a programmed accumulation of
damage and decline in the function of the immune system-
"immunosenescence"
-decreased ability of lymphocytes to withstand oxidative stress
-t cells thought to be responsible for increasing age-related autoimmune
disorders
Psychosocial Theories of Aging - ANSWER Persons are multidimensional
life considered in totality to understanding aging
First generation
Second generation
Third generation
First generation - ANSWER explain and predict changes in middle and late
life, focusing on adjustment
Second generation - ANSWER expanded and built upon first generation
theories "alternative theoretical perspectives"
Third generation - ANSWER understanding the human meaning of social life
in context to everyday life
Activity Theory (First generation) - ANSWER Continued activity and the
ability to "stay young" indicated successful aging
-attempted to predict and explain how individuals adjusted to age-related
changes by looking at one's level of activity and productivity
-popular because it is consistent with Western society's emphasis on work,
wealth, and productivity
Disengagement Theory (second generation) - ANSWER -Withdrawal of elders
from their roles and activities earlier in life necessary to allow transfer of power
to younger generations
-Probably provided the basis for age discrimination
-elder participation is now considered beneficial to society
