B1.4.3 - Factors affecting photosynthesis

Question 1

What factors affect the rate of photosynthesis?

Answer 1

Light intensity, carbon dioxide and temperature

Question 3

What is formula for the rate of photosynthesis?

Answer 3

Rate = 1/t

Question 4

How does light intensity affect the rate of photosynthesis?

Answer 4

The higher the light intensity, the faster the rate of photosynthesis. This continues until it reaches its maximum rate,

Question 5

How does temperature affect the rate of photosynthesis?

Answer 5

Photosynthesis is a series of enzyme controlled reaction so therefore as the temperature increases the faster the reactions occur. However if the temperature is too high then the enzymes will denature and the reactions will stop

Question 6

How does carbon dioxide affect the rate of photosynthesis?

Answer 6

The greater the carbon dioxide concentration, the faster the rate of reaction. However because the atmosphere only contains 0.04% carbon dioxide it is commonly the limiting factor