Nutrition

Question 1

What is photosynthesis? (3)

Answer 1

• The process of making glucose from sunlight in the leaves of the plant
• Endothermic reaction where light energy is converted into chemical energy
• In the chloroplasts

Question 2

What is the word equation for photosynthesis?

Answer 2

carbon dioxide + water –> glucose + oxygen
(light is required)

Question 3

What is the equation for photosynthesis?

Answer 3

6CO2 + 6H20 –> C6H12O6 + 6O2

Question 4

Explain the factors that affect photosynthesis (3)

Answer 4

• Temperature: greater = faster, however trend only continues to the optimum temperature until the enzymes begin to denature
• Light intensity: greater = faster, as the distance increases, the light intensity decreases (light intensity is inversely proportional to the square of the distance)
• Carbon dioxide concentration: greater = faster, a reactant of photosynthesis