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  • Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following?Option

Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these systems does which of the following?

Option: 1

Fixes CO_{2}


Option: 2

Traps light energy


Option: 3

Synthesizes starch


Option: 4

Works only in the presence of light


Answers (1)

best_answer

 

 

 

  • Photosynthesis is a two-step process. 
  • The following reactions are involved in the process:
    • Light Reaction
    • Dark Reaction

Dark Reaction:

  • It occurs in the stroma of the chloroplast.
  • Glucose is formed using carbon dioxide, ATP for energy and NADPH as reducing power.
  • It is also called the Calvin cycle.

- 

 

The second reaction in photosynthesis is dark reaction or biosynthetic phase which fixes carbon dioxide to form glucose. Hence, the correct answer is option a.

Posted by

himanshu.meshram

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