IB Biology HL C1.2.4 Cell Respiration System Questions
Practise IB Biology HL 8.2.4 by analysing respiration stages, oxygen consumption and metabolite data as evidence of cellular energy use.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Define cellular respiration as enzyme-controlled, stepwise oxidation of organic compounds that releases energy for ATP production.
- Relate aerobic respiration to oxygen use, electron acceptance, carbon dioxide release and ATP generation across respiration stages.
- Interpret respiration and metabolite evidence to compare aerobic/anaerobic energy release and identify substrates used by cells.
IB Biology HL C1.2.4 Cell Respiration System Questions question 1
[Maximum number: 1]
What occurs during the stages of respiration?
Stage of respiration
Decarboxylation
Reduced NAD produced
Glycolysis
No
No
Link reaction
Yes
No
Krebs cycle
Yes
Yes
Electron transport chain
No
Yes
C
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