CAIE IGCSE Biology 12.2 Aerobic Respiration
Practise aerobic-respiration questions on oxygen use, glucose breakdown, energy release, word equations and balanced symbol-equation coefficients.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- identify glucose and oxygen as reactants and carbon dioxide and water as products
- write the word equation for aerobic respiration and link oxygen use to energy release
- balance C6H12O6 + 6O2 -> 6CO2 + 6H2O and use coefficients in molecule counts
Covered syllabus points
12.2 Aerobic respiration question 1
Fig. 1.1 shows the movement of particles through an epithelial cell in the small intestine.
Fig. 1.1
Carbon dioxide molecules also move by diffusion.
State the name of the process in human cells that produces carbon dioxide.
12.2 Aerobic respiration question 2
The substances listed are associated with aerobic respiration.
1 carbon dioxide
2 glucose
3 oxygen
4 water
Which substances are the products of aerobic respiration?
A
1 and 3
B
1 and 4
C
2 and 3
D
3 and 4
12.2 Aerobic respiration question 3
Fig. 2.1 shows a cross-section of a human heart.
Fig. 2.1
Fig. 2.3 shows how the body uses aerobic and anaerobic respiration during the first 120 seconds of vigorous physical activity. Between 0 and 20 seconds, the body also uses stored energy.
percentage of energy released
Fig. 2.3
State the balanced chemical equation for aerobic respiration.
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