Edexcel ·Combined Science·Cambridge IGCSE Combined Science

Respiration, Gas Exchange & Coordination

15 min read

Aerobic and anaerobic respiration, the breathing system and gas exchange, and nervous and hormonal coordination including the reflex arc.

Aerobic respiration

Aerobic respiration releases energy from glucose using oxygen, in the mitochondria:

$C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O$

(glucose + oxygen → carbon dioxide + water), releasing a large amount of energy.

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Edexcel ·Combined Science·Cambridge IGCSE Combined Science

15 min read

Aerobic and anaerobic respiration, the breathing system and gas exchange, and nervous and hormonal coordination including the reflex arc.

Aerobic respiration releases energy from glucose using oxygen, in the mitochondria:

$C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O$

(glucose + oxygen → carbon dioxide + water), releasing a large amount of energy.

Create a free account to read this note in full. Every free account gets 2 complete revision notes — no card needed.