Igcse Model Questions Vol1 2017 Biology Question 4

Practice essay / theory question 4 from the 2017 Igcse Model Questions Vol1 Biology examination. This question covers Cell biology, Aerobic respiration .

Igcse Model Questions Vol1 2017 Biology Essay / Theory
Topics: Cell biology Aerobic respiration
Question 4 IGCSE_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • essay
Igcse Model Questions Vol1 2017 Biology Question 4 diagram

The diagram shows a typical eukaryotic cell mitochondrion with its major structures labelled from A to G.

Question Parts

( a )
State the name of each labelled part (A–G) shown in the diagram.
( b )
For each part identified in (a), briefly describe its specific role in aerobic respiration.
( c )
Using the information that each NADH yields 3 ATP and each FADH₂ yields 2 ATP in the electron transport chain, calculate the total number of ATP molecules produced from one molecule of glucose under fully aerobic conditions. Assume glycolysis produces 2 NADH and 2 ATP (substrate‑level), pyruvate oxidation produces 2 NADH, and the Krebs cycle produces 6 NADH, 2 FADH₂ and 2 ATP (substrate‑level). Then explain what would happen to the ATP yield if oxygen were limited.

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About This Question

This is Igcse Model Questions Vol1 2017 Biology Question 4. It is one of the essay questions from the 2017 Igcse Model Questions Vol1 Biology examination.

The question covers Cell biology, Aerobic respiration .

View More Igcse Model Questions Vol1 2017 Biology Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

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