OCR A Level Biology B (Advancing Biology)

OCR A Level Biology B (Advancing Biology) Cellular Respiration Exam Questions

Free OCR A Level Biology B (Advancing Biology) exam questions on Cellular Respiration, with mark schemes. Covers glycolysis, the link reaction, Krebs cycle, oxidative phosphorylation and anaerobic respiration.

Cellular Respiration exam questions

1 question pack of real past exam questions with its mark scheme. Answer every question without notes, then mark your answers line by line against the mark scheme.

4.1.1 Cellular RespirationQuestions and mark scheme
A Level Biology Flashcards StemUp mark scheme flashcards A Level Biology Flashcards Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page. View flashcards

About OCR A Level Biology B (Advancing Biology) Cellular Respiration

This topic covers how cells release energy.

What you need to know

  • Glycolysis Glucose to pyruvate in the cytoplasm.
  • Link and Krebs Produce NADH, FADH₂ and CO₂ in the matrix.
  • Oxidative phosphorylation Electron transport chain and chemiosmosis.
  • Anaerobic Lactate and ethanol fermentation.

Common mistakes in Cellular Respiration

  • Placing the Krebs cycle in the cytoplasm.
  • Forgetting oxygen is the final electron acceptor.
  • Overstating ATP yield of anaerobic respiration.

Try three Cellular Respiration exam-style questions

1. State the final electron acceptor. (1 mark)

Show the mark scheme answer

Oxygen.

2. Explain why anaerobic respiration yields little ATP. (2 marks)

Show the mark scheme answer

Only glycolysis occurs (1), as without oxygen the electron transport chain stops (1).

3. Name the enzyme that makes ATP in chemiosmosis. (1 mark)

Show the mark scheme answer

ATP synthase.

Cellular Respiration FAQs

What does Cellular Respiration cover?

All stages of aerobic and anaerobic respiration.

Which practical links here?

Respirometer investigations.

What is RQ?

CO₂ produced divided by O₂ used.

Revise this topic with flashcards: A Level Biology Flashcards, with mark scheme answers for Anki and Quizlet.