The diagram below shows a section through a part of a mitochondrion - VCE - SSCE Biology - Question 8 - 2018 - Paper 1
Question 8
The diagram below shows a section through a part of a mitochondrion.
The sites of the pathways in aerobic respiration are
A. R - glycolysis, S - Krebs cycle, T - e... show full transcript
Worked Solution & Example Answer:The diagram below shows a section through a part of a mitochondrion - VCE - SSCE Biology - Question 8 - 2018 - Paper 1
Step 1
A. R - glycolysis, S - Krebs cycle, T - electron transport chain.
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Answer
This statement is incorrect because glycolysis occurs in the cytoplasm, not in the mitochondrion.
Step 2
B. U - glycolysis, T - Krebs cycle, S - electron transport chain.
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Answer
This statement is also incorrect for the same reason that glycolysis does not occur in the mitochondrion.
Step 3
C. R - glycolysis, U - Krebs cycle, T - electron transport chain.
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Answer
This statement is correct: R is the site of glycolysis in the cytoplasm, U is the site of the Krebs cycle which occurs inside the mitochondrion, and T is the electron transport chain also located within the mitochondrion.
Step 4
D. T - glycolysis, R - Krebs cycle, S - electron transport chain.
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Answer
This statement is incorrect because it assigns glycolysis to T, which is not accurate since glycolysis occurs outside the mitochondrion.
