Which of the following statements about the challenges of C3 photosynthesis under hot conditions is TRUE? When they close stomatal cells, they save water but lose too much O2. O Rubisco has a higher affinity for CO2, making the rate of photosynthesis too rapid. O When stomatal cells close, photorespiration increases and CO2 is lost. O C3 plants have to spend energy to store carbon in a separate specialized cell.

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Author:Matthew Douglas, Jung Choi, Mary Ann Clark
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Chapter8: Photosynthesis
Section: Chapter Questions
Problem 3VCQ: Figure 8.18 Which of the following statements is true? In photosynthesis, oxygen, carbon dioxide,...
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Which of the following statements about the challenges of C3 photosynthesis under hot conditions
is TRUE?
O When they close stomatal cells, they save water but lose too much O2.
O Rubisco has a higher affinity for CO2, making the rate of photosynthesis too rapid.
When stomatal cells close, photorespiration increases and CO2 is lost.
C3 plants have to spend energy to store carbon in a separate specialized cell.
Transcribed Image Text:Which of the following statements about the challenges of C3 photosynthesis under hot conditions is TRUE? O When they close stomatal cells, they save water but lose too much O2. O Rubisco has a higher affinity for CO2, making the rate of photosynthesis too rapid. When stomatal cells close, photorespiration increases and CO2 is lost. C3 plants have to spend energy to store carbon in a separate specialized cell.
Expert Solution
Introduction

C3 Cycle: It is a cyclic reaction that occurs during the dark phase of photosynthesis. This cycle involves conversions of CO2 into sugar and hence it is a process of carbon fixation. It is also known as Calvin Cycle

Net Reaction of the cycle :

3CO2 + 5H2O + 6NADPH + 9ATP-----------glyceraldehyde - 3 - phosphate+ 6NADP+ + 3H+ + 9 ADP + 8Pi

Usually majority of plants and trees perform C3 cycle like wheat,cotton,grasses and, etc.

 

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