Bioenergetics Flashcards Flashcards

AQA GCSE Biology (8461)

Photosynthesis

The process by which plants use light energy to convert carbon dioxide and water into glucose and oxygen.

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Terms in this set (15)

1

Photosynthesis

The process by which plants use light energy to convert carbon dioxide and water into glucose and oxygen.

2

Word equation for photosynthesis

Carbon dioxide + water → glucose + oxygenin the presence of light and chlorophyll).

3

Balanced symbol equation for photosynthesis

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.

4

Limiting factors of photosynthesis

Light intensity, carbon dioxide concentration, and temperature.

5

Chlorophyll

The green pigment in chloroplasts that absorbs light energy for photosynthesis.

6

Role of stomata in photosynthesis

Stomata allow carbon dioxide to enter the leaf and oxygen to exit.

7

Aerobic respiration

Respiration that requires oxygen to release energy from glucose.

8

Word equation for aerobic respiration

Glucose + oxygen → carbon dioxide + water + energy.

9

Balanced symbol equation for aerobic respiration

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O.

10

Anaerobic respiration

Respiration that does not require oxygen producing less energy than aerobic respiration.

11

Word equation for anaerobic respiration in animals

Glucose → lactic acid + energy.

12

Word equation for anaerobic respiration in plants and yeast

Glucose → ethanol + carbon dioxide + energy.

13

mentation

Anaerobic respiration in yeast, used in bread-making and alcohol production.

14

Energy use in organisms

Energy is used for movement, keeping warm, and synthesising larger molecules from smaller ones.

15

Oxygen debt

The extra oxygen required after exercise to break down lactic acid and restore normal conditions.

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