Metabolism Flashcards
Metabolism
- body preforms chemical reactions to stay alive
- all these reactions together are metbolism
- has catabolic and anabolic reactions
Catabolic
the breakdown of materials in an organism
anabolic
building complex molecules from simpler ones
converting glaucous into gylcogen
energy for animals
- Not all types of living things require the same amount of energy
- endothermic animals and entothermic
endothermic anaimls
- mammals/birds
- need more energy to main body temp
- constant internal body temp
entothermic anaimls
- reptiles
- less energy demands
- can not survive in cold climates
- do not need to eat frequently
- proportional/same to ambient temp (outside temp)
Effects on metbolism
body size
physical acvicty
age
Heredity Factors
sex
disease
Effects on metbolism: Body size
- the more larger a body is, the more energy it needs
- the more cells a person as= more celular respiration= more metbolism/energy
Effects on metbolism: physcial activity
- muscle needs more energy than fat, so active people need more enrgy
Effects on metbolism: age
- metabolism decreases with age
Effects on metbolism: sex
- typically males are larger in size and have more muslce making them have more enrgy needs
Effects on metbolism: Heredity Factors
- some people have naturally high or low metablic rate
Effects on metbolism: disease
- thyroid diease can increase or disease metabolism
BMR
The amount of enrgy you need at rest
- basal metabolic rate
used to calucate
healthy lifestyles
you need to have a balnce bwteen:
what you are eating
how much you are eating
how much physcial actvity you do