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1853120
Anaerobic and Aerobic Respiration
Descrição
GCSE GCSE SCIENCE Mapa Mental sobre Anaerobic and Aerobic Respiration, criado por amybberrry em 10-01-2015.
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gcse science
gcse
Mapa Mental por
amybberrry
, atualizado more than 1 year ago
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Criado por
amybberrry
quase 10 anos atrás
44
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Resumo de Recurso
Anaerobic and Aerobic Respiration
RESPIRATION IS...
NOT breathing
The process of releasing energy
From the breakdown of glucose
AEROBIC RESPIRATION
Respiration using oxygen
Most efficient way of releasing energy
Goes on all the time in animals and plants
Glucose + Oxygen --> Carbon Dioxide + Water (+Energy)
Most reactions in aerobic respiration happen inside mitochondria
RESPIRATION RELEASES ENERGY FOR...
Building up larger molecules from smaller ones
Like proteins from amino acids
Allowing muscles to contract (in animals)
Which allows movement
Keeping the body temperature steady and warm (in mammals and birds)
Building sugars, nitrates and other substances into amino acids
To make proteins
EXERCISE
Increases heart rate because...
More oxygen and glucose is used up
And more carbon dioxide is taken away
So the blood flow needs to increase to meet this demand
Glycogen is used
Some glucose is stored as glycogen
It is mainly stored in the liver
But some is in the muscles too
During vigorous exercise
Muscles use glucose rapidly
So some stored glycogen is converted to glucose to provide more energy
Stored as glycogen for large surface area for enzymes to get to
Makes you breathe more deeply and increases your breathing rate because...
More oxygen is needed for the muscles
You get warmer
Because tone of the by-products of respiration is heat
So your blood vessels dilate and you sweat
ANAEROBIC RESPIRATION
Glucose --> (Energy) + Lactic Acid The incomplete breakdown of glucose
Respiration without oxygen
Because your body can't supply enough oxygen to your muscles
Causes production of lactic acid
Which causes cramp and muscle fatigue
Removed through oxidisation which turns it into carbon dioxide and water
Does not release nearly as much energy as aerobic respiration
But it's useful in emergencies and you can keep using your muscles for a while longer
Oxygen debt
You have to repay oxygen that you didn't get to your muscles in time
Because your heart, lungs and blood couldn't keep up with the earlier on
So you keep breathing hard for a while after you stop
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