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B4- Bionergetics (Respiration and Exercise (Anaerobic Respiration (In AR…
B4- Bionergetics
Respiration and Exercise
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Exercise and Respiration
when the body demands more energy. The HR, Breathing rate and breath volume all increase to provide more oxygen & glucose
AR starts to take place when muscles don't get enough oxygen and glucose. This causes build up of lactic acid and Oxygen debt.
The lactic acid is a poison which makes the muscles to hurt and stops them from contracting efficiently therefore must be got rid of
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Metabolism
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- This includes:
- The conversion of Glucose into starch, glycogen and cellulose
- The formation of lipid molecule from a molecule of glycerol and three molecules of fatty acids
- The use of glucose and nitrate ions to form amino acids, used to make proteins
Photosynthesis
Photosynthesis
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Energy is needed from the sun because its endothermic reaction and the sunlight is trapped by chlorophyll found in the chloroplast
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Converting Glucose
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It may be converted into-
- insoluble Starch, stored in stem, leaves or roots
- Fat or oil, in seed
- Cellulose,to strengthen the cell walls
- Proteins, used for growth and forenzymes
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