A chemical reaction which takes place in all living organisms.
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Why do we need energy?
To grow, to keep warm, for movement, for repair.
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What is the word equation for respiration?
glucose + oxygen >>> water + carbon dioxide
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Where does respiration occur?
In the Mitochondria, they produce and then release glucose and energy.
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What does insulin do?
Regulate blood glucose levels.
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How and where is glucose stored?
Glucose is stored as glycogen in the muscles and liver.
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Why is a higher level of oxygen needed after exercise?
To break down lactic acid.
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What is the amount of oxygen needed after exercise called?
The oxygen debt.
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What is the word equation for the breaking down of lactic acid?
lactic acid + oxygen >>> carbon dioxide + water
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What is the word equation for anaerobic respiration in plants and yeast?
glucose >>> ethanol + carbon dioxide
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How do you balance the equation for photosynthesis and respiration?
By putting a 6 in front of water, oxygen and carbon dioxide.
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Why would someone still be breathing heavily after exercise?
To remove extra carbon dioxide, repay the oxygen debt, remove heat and start performing aerobic respiration again.
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What are lipids?
Lipids are fats and oils.
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What are lipids used for?
They are components of cell membranes, energy stores, chemical messengers (hormones) and they are used for protection, water proofing, buoyancy aids and insulation.
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How are aerobic respiration chemical reactions controlled?
They are controlled by enzymes.
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What makes up a large portion of our cells, muscles and tissues?
Amino acids.
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What do amino acids do?
They give cells their structure, build and repair tissues, make antibodies and make hormones.
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What is glucose an example of?
A monosaccharide.
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What do organisms combine together to make?
Polysaccharides such as cellulose, glycogen and starch.
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