What is meant by the term aerobic respiration?
Aerobic respiration is a biological process that occurs in the presence of oxygen, enabling cells to convert glucose into energy - Leaving Cert Biology - Question b - 2009
Question b
What is meant by the term aerobic respiration?
Aerobic respiration is a biological process that occurs in the presence of oxygen, enabling cells to convert glucose ... show full transcript
Worked Solution & Example Answer:What is meant by the term aerobic respiration?
Aerobic respiration is a biological process that occurs in the presence of oxygen, enabling cells to convert glucose into energy - Leaving Cert Biology - Question b - 2009
Step 1
What is meant by the term aerobic respiration?
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Answer
Aerobic respiration refers to the process of using oxygen to convert glucose into energy. This process occurs in two main stages: the Krebs cycle (Stage 2) and glycolysis (Stage 1), where oxygen is utilized to maximize the energy yield.
Step 2
A. Takes place in the mitochondria.
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Stage 2
Step 3
B. Produces a large amount of energy.
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Stage 2
Step 4
C. Takes place in the cytoplasm.
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Stage 1
Step 5
D. Does not require oxygen.
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Stage 1
Step 6
A. Name the solution in which you placed the yeast at the start of the activity.
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The solution was a glucose solution, serving as the food source for the yeast.
Step 7
B. Give the temperature at which you then kept the solution.
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The solution was kept at a temperature between 15°C to 40°C, ideally around room temperature.
Step 8
C. How did you know that alcohol production had ceased?
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Alcohol production ceased when bubbling stopped, indicating that yeast activity had come to an end or the solution cleared as the yeast settled.
Step 9
D. Name the test or chemical(s) used to show that alcohol had been produced.
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To confirm the production of alcohol, tests such as the iodine test or using chemicals like bleach/dichromate can be utilized.
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