Anaerobic respiration (12.3) | Cambridge IGCSE (9–1) Biology 0970 (Extended) (2026–2028) | KnowledgeSet

Anaerobic respiration

Biology · IGCSE · Cambridge · Cambridge IGCSE (9–1) Biology 0970 (Extended) (2026–2028) · Specification point · 12.3 · Respiration

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12.3 Anaerobic respiration

Core	Supplement
$1 Describe anaerobic respiration as the chemical reactions in cells that break down nutrient molecules to release energy without using oxygen$
$2 State that anaerobic respiration releases much less energy per glucose molecule than aerobic respiration$
$3 State the word equation for anaerobic respiration in yeast as: glucose \to alcohol + carbon dioxide$	$C_{6} H_{12} O_{6} \to 2 C_{}$

2

H_{5}

O

H

+

2

C

O_{2}

\mathrm{C_6H_{12}O_6 \rightarrow 2C_2H_5OH + 2CO_2}