DP Biology (first assessment 2025)

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Question 23M.1A.HL.TZ2.26

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.HL.TZ2.26
Level HL Paper 1A Time zone TZ2
Command term Question number 26 Adapted from N/A
26.
[Maximum mark: 1]
23M.1A.HL.TZ2.26

Which part of aerobic respiration directly involves oxygen molecules?

A.  Conversion of glucose to pyruvate

B.  Accepting electrons from the electron transport chain

C.  Oxidizing acetyl groups in the Krebs cycle

D.  Production of NAD from reduced NAD

[1]

Markscheme

B

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