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816515
Exercise
Description
Fact about Exercise. Comment below if this helps you :)
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exercise
biology 2b
biology
gsce
science
biology
2b
gsce
Mind Map by
Evangeline Taylor
, updated more than 1 year ago
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Created by
Evangeline Taylor
over 10 years ago
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Resource summary
Exercise
Exercise increases the heart rate
Muscles are made of muscle cells
These use oxygen to release energy from glucose
(Aerobic respiration)
Used to contract the muscles
Increase in exercise requires more glucose and oxygen
To supplied the muscle cells
Extra carbon dioxide needs to be removed
Blood flows at a faster rate
Physical activity:
increase your breathing rate
makes you breathe more deeply to meet the demand for extraoxygen
Increases the speed at which the heart pumps
Glycogen is used during exercise
Glucose from food is stores as glycogen
Glycogen is mainly stored in the liver
But each muscles also has its own store
During vigorous exercise, glucose it being used rapidly
Some of the store glycogen gets converted back to glucose
Produces more energy
Anaerobic Respiration
Used if there note enough oxygen
If your body can't get enough oxygen during vigorous exercise
Your muscles start doing anaerobic respiration instead of aerobic respiration
"Anaerobic" means WITHOUT oxygen
An incomplete breakdown of glucose
Produces lactic acid as waste product
Anaerobic Respiration leads to an oxygen debt
An oxygen debt is when you body "repays" the oxygen that couldn't get to your mucsles in time
Because you lungs, heart and blood couldn't keep up with the demand earlier on
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Anaerobic_respiration_equation (image/png)
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