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Bioenergetics - Coggle Diagram
Bioenergetics
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Response to exercise
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The heart rate, breathing rate and breath volume increase during exercise to supply the muscles with more oxygenated blood.
If insufficient oxygen is supplied anaerobic respiration takes place in muscles. The incomplete oxidation of glucose causes a build up of lactic acid and creates an oxygen debt
Blood flowing through the muscles transports the lactic acid to the liver where it is converted back into glucose.
Oxygen debt is the amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from the cells.
Rate of Photosynthesis
Temperature, light intensity, carbon dioxide concentration, and the amount of chlorophyll effect the rate of photosynthesis. When one or more of these factors is in short supply, it is a limiting factor of photosynthesis.
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Limiting factors are important in the economics of enhancing the conditions in greenhouses to gain the maximum rate of photosynthesis while still maintaining profit.
Metabolism
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The energy transferred by respiration in cells is used by the organism for the continual enzyme controlled processes of metabolism that synthesise new molecules.
Metabolism includes:
• conversion of glucose to starch, glycogen and cellulose
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• the use of glucose and nitrate ions to form amino acids which in turn are used to synthesise proteins
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Photosynthesis
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Photosynthesis is an endothermic reaction in which energy is transferred from the environment to the chloroplasts by light.
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