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IGCSE Quiz - 16 May

Sucrase catalyses digestion of sucrose into glucose and fructose Which is the lock and key?
Lock = Sucrose, Key = Sucrase
Lock = Sucrase, Key = Sucrose
Lock = Sucrase Key = Glucose and Fructose
Lock = Sucrose, Key = Glucose and Fructose
Which of the following happens during the light stage of photosynthesis? Choose one or more answer.
Light energy is absorbed by chlorophyll
Photolysis of water
Reduction of carbon dioxide into glucose
Photolysis of carbon dioxide
What wavelengths of light are least absorbed during photosynthesis? Choose one or more answer.
Green
Red
Blue
Violet
Which of the following is true of the dark stage of photosynthesis? Choose one or more answer.
Reduction of carbon dioxide into glucose
The reactions are catalyzed by enzymes
Water is produced
Oxygen is produced
Rate of photosynthesis is affected by which of the following?
Light intensity
Oxygen concentration
Carbon dioxide concentration
Temperature
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