Question

question 11
think about the process of finding the ideal conditions. why would it l
intensity if the temperature were very hot or cold?
o a light intensity becomes stronger at very hot temperatures.
o b extreme temperatures can slow down or stop photosynthesis, masking the effect of li
o c plants absorb less carbon dioxide when temperatures change.
o d temperature does not affect photosynthesis, only light does.

Explanation:

Photosynthesis is an enzyme - mediated process. Enzymes have an optimal temperature range for activity. At very hot or cold temperatures:

• Enzymes can denature (at high temperatures) or have their activity severely reduced (at low temperatures).
• This affects the rate of photosynthesis. If photosynthesis is slowed down or stopped (due to temperature effects on enzymes), it becomes difficult to observe the effect of light intensity on the overall photosynthetic process as the temperature - induced limitations mask the light - related effects.

Answer:

B. Extreme temperatures can slow down or stop photosynthesis, masking the effect of light.