好気性呼吸

Respiration with oxygen

• When plenty of oxygen is available, cells use the most efficient method: aerobic respiration 有氧呼吸.
• It releases a lot of energy from each glucose 葡萄糖 molecule.

The aerobic equation

• Glucose + oxygen → carbon dioxide + water (+ energy).
• It is the reverse of photosynthesis.

Aerobic respiration needs oxygen and gives a lot of energy; anaerobic gives much less

Lots of energy

• Aerobic respiration releases a large amount of energy per glucose.
• This is why it's the body's normal, preferred method at rest and in gentle activity.

Aerobic respiration releases energy for sustained exercise

The gases involved

• Oxygen is used up; carbon dioxide and water are produced.
• The carbon dioxide is carried in the blood to the lungs and breathed out.

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