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Biology - 6.1 Aerobic and anaerobic respiration questions and answers
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Biology - 6.1 Aerobic and anaerobic respiration
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Biology - 6.1 Aerobic and anaerobicrespiration
Respiration? - answer Chemical reaction that breaks down nutrient molecules in living
cells to release energy
Use of energy in the body of human (6) - answer Muscle contraction
Protein synthesis
Cell division
Growth
The passage of nerve impulse
Maintenance of a constant body temperature
Define aerobic respiration - answerThe release of a relatively large amount of energy in
cells by the breakdown of food substances in the presence of oxygen.
Glucose is broken down to release energy in the presence of oxygen, forming carbon
dioxide and water.
Oxygen used to breakdown glucose
Equation of aerobic respiration - answerglucose + oxygen -> carbon dioxide + water +
energy released
G6 H12 O6 + 6O2 -> 6CO2 + 6H2 O + energy released
Define anaerobic respiration - answerThe release of a relatively small amount of energy
by the breakdown of food substances in the absence of oxygen.
Glucose is broken down to release energy in the absence of oxygen, forming lactic acid
in muscle tissue, or alcohol plus carbon dioxide in yeast and plants
Equation of anaerobic respiration - answerGlucose -> Lactic Acid + energy released
C6H12O6 -> 2C3 H6 O3 + energy released
Energy release between aerobic and anaerobic respiration - answerFar more energy
released from each molecule of glucose in aerobic than in anaereobic repiration
What is Yeast - answera single celled fungus which can respire with or without oxygen
When yeast respires anaerobically, it produces - answercarbon dioxide and ethanol
Equation? - answerGlucose -> carbon dioxide + ethanol + energy released
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