B2 Aerobic and Anaerobic Respiration

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  • Created by: EllenMIW
  • Created on: 31-12-15 19:53
What are chemical reactions in cells controlled by?
Enzymes
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Respiration occurs... in....
Continuously, plants and animals
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Aerobic respiration word equation
Oxygen + Glucose - Carbon dioxide + water (+energy)
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How is energy from respiration used in animals?
Building larger molecules from smaller ones, maintaining steady body temp in cold (birds and mammals), contracting muscles
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How is energy from respiration used in plants?
Building larger molecules from smaller ones, building up sugars, nitrates and other nutrients into amino acids
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Changes during exercise
Heart rate increases, rate and depth of breathing increases
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How do the changes that occur during exercise aid the body?
Increase rate of blood flow to muscles, so increase supply of sugar and oxygen, so increase rate of CO2 removal
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How do muscles store glucose?
As glycogen, which can be converted back to glucose during exercise
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When is anaerobic respiration used?
When insufficient oxygen is reaching the muscles
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Anaerobic respiration
The incomplete breakdown of glucose, which produces lactic acid
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Why does the oxygen debt have to be repaid?
In order to oxidise lactic acid to carbon dioxide and water
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Cause of muscle fatigue
Build up of lactic acid
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How is lactic acid removed from muscles?
Blood flowing through muscles
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Muscle fatigue
Muscles stop contracting efficiently
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Other cards in this set

Card 2

Front

Respiration occurs... in....

Back

Continuously, plants and animals

Card 3

Front

Aerobic respiration word equation

Back

Preview of the front of card 3

Card 4

Front

How is energy from respiration used in animals?

Back

Preview of the front of card 4

Card 5

Front

How is energy from respiration used in plants?

Back

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