Biology 0610 · IGCSE · Photosynthesis

Photosynthesis — practice question

The graph illustrates how temperature affects the rate of photosynthesis. Which statement explains the change in the rate of photosynthesis between $15\degree\text{C}$ and $20\degree\text{C}$?

  • AChlorophyll is able to transfer more energy in chemicals to energy in light.
  • BEnzymes involved in photosynthesis have denatured.
  • CKinetic energy of molecules is increasing, resulting in more effective collisions.
  • DLight intensity and not temperature is limiting the rate of photosynthesis.

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