Respiration (Edexcel GCSE Biology): Flashcards

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Respiration
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Type of reaction: cellular respiration

Exothermic

Two types of respiration

Aerobic and anaerobic

Substance broken down in respiration

Glucose

Respiration vs breathing

Respiration occurs in cells (releases energy); breathing is ventilation

Location of aerobic respiration

Mitochondria

Aerobic respiration word equation

Glucose + O2O_2 → CO2CO_2 + H2OH_2O + Energy

Location of anaerobic respiration

Cytoplasm

Anaerobic respiration product in animals

Lactic acid

Anaerobic products in plants/yeast

Ethanol and carbon dioxide

ATP per glucose: aerobic vs anaerobic

Aerobic: 36-38 ATP; Anaerobic: 2 ATP

More efficient type of respiration

Aerobic respiration

Definition: oxygen debt

O2O_2 needed to break down lactic acid after exercise

Effect of lactic acid buildup in muscles

Muscle fatigue

Uses of fermentation

Alcohol production and bread-making

Energy currency molecule in cells

ATP (adenosine triphosphate)

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