Master GCSE Biology

MS1:

- Captures light energy (1)

MS2:

- More light available for chlorophyll to absorb (1)

- More light energy absorbed leads to more chemical reactions (1)

MS3:

- Rate of photosynthesis would decrease (1)

- Carbon dioxide is a limiting factor for photosynthesis (1)

- Lack of carbon dioxide means fewer molecules available to make glucose (1)

MS4:

- Glycolysis (1)

- Krebs cycle/Citric acid cycle (1)

MS5:

- Aerobic respiration uses oxygen, while anaerobic respiration does not (1)

- Aerobic respiration produces much more energy/ATP than anaerobic respiration (1)

MS6:

- Fermentation is the anaerobic breakdown of glucose to produce lactic acid (1)

- Lactic acid fermentation occurs in muscle cells when oxygen is in short supply (1)

MS7:

- Oxygen debt (1)

MS8:

- Metabolism produces heat as a byproduct (1)

- Increased metabolism (e.g., during exercise) leads to increased heat production (1)

MS9:

- Blood glucose levels will increase (1)

- Excess glucose stored as glycogen in the liver and muscles (1)

- Increased blood glucose may lead to increased metabolism to use up the glucose (1)

MS10:

- Inhibiting lactic acid fermentation reduces oxygen debt (1)

- This allows athletes to maintain high activity levels for longer (1)

- Reduced lactic acid build-up prevents muscle fatigue (1)