AP BIOLOGY

PHOTOSYNTHESIS

THE CALVIN CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When it is chilly and raining outside, there is no photosynthesis taking place. What is the limiting factor?
A
Temperature
B
Rainfall
C
Carbon Dioxide
Explanation: 

Detailed explanation-1: -The correct answer is: Temperature.

Detailed explanation-2: -It’s concentration is the major limiting factor. If the concentration of carbon dioxide is low photosynthesis can not occur.

Detailed explanation-3: -As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature. At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates. At high temperatures, enzymes are denatured .

Detailed explanation-4: -Oxygen is not a limiting factor as it is never considered as an element required for photosynthesis. It is released as a byproduct during photosynthesis.

There is 1 question to complete.