Respiration (Junior Cert Science): Flashcards

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Respiration
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Definition of respiration

Release of energy from food

Word equation for respiration

glucose + oxygen → energy + CO₂ + water

Definition of aerobic respiration

Energy release from food when oxygen is present

Definition of anaerobic respiration

Energy release from food without oxygen

Products of anaerobic respiration in yeast

Ethanol (alcohol) and carbon dioxide

Product of anaerobic respiration in animals

Lactic acid

Three main factors affecting respiration

Glucose concentration, oxygen concentration, temperature

What are enzymes?

Special proteins that speed up chemical reactions

Optimum temperature for human enzymes

Approximately 37circextC37^circ ext{C}

Effect of high temperature on enzymes

Destroyed (denatured) and cannot function

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