Why is it difficult for C3 plants to carry out photosynthesis in ...

Question

Why is it difficult for C3 plants to carry out photosynthesis in very hot, dry environments such as deserts?
a. The light is too intense and destroys the pigment molecules.
b. The closing of stomata keeps CO2 from entering and O2 from leaving the plant.
c. They must rely on photorespiration to make ATP.
d. CO2 builds up in the leaves, blocking carbon fixation.

Accepted Answer

Hello everyone here we have a question asking which of the following statements best describes why photo respiration does not occur in C. Four plants A. They cannot utilize A. T. P. This is incorrect. C. Four plants do utilize A. T. P. They actually use more when compared to C. Three plants. C. Four plants go through the C. Four cycle as well as the Calvin cycle to produce sugar and carbon dioxide is fixed twice, so A. Is incorrect. B. They evolved a solution to increase the concentration of carbon dioxide inside the cell. This is correct. C. Four plants have developed a special mechanism of carbon fixation and this mechanism largely prevents photo respiration. The photosynthetic functions are divided between the mesophyll and bundle sheath leaf of sales. So B. Is correct. But let's look at our other options. See they fix carbon dioxide at midnight. This isn't correct. C. A. M. Plants fix carbon dioxide at night. Not see ford plants. D. They carry out carbon dioxide fixation and the Calvin cycle in the meso fuel cell. This isn't true. C. Four plants minimize photo respiration by separating initial carbon dioxide fixation and mesophyll cells. And the Calvin cycle is in the bundle she sell not the mesophyll cell. So D. Is incorrect as well. So our answer here is B. They evolved a solution to increase the concentration of carbon dioxide inside the cell. Thank you for watching. Bye.

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