AIIMS 2018 Botany Calvin Cycle MCQ Question
Assertion : Dark reaction of photosynthesis uses and
Reason : Dark reaction takes place in absence of light.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not correct explanation of A.
A is true but R is false
A and R are false
Correct Answer
Detailed Explanation
The dark reactions of photosynthesis, also known as the Calvin cycle, primarily occur in the stroma of chloroplasts and do not require light directly; instead, they utilize ATP and NADPH produced during the light-dependent reactions. While the term "dark reactions" suggests that these processes occur in the absence of light, they can still take place when light is present, as the ATP and NADPH are generated during the light reactions. Other options are not applicable as they do not provide relevant information regarding the nature of dark reactions or their relationship with light. Understanding this distinction is crucial for grasping the overall process of photosynthesis, which involves the conversion of CO₂ and H₂O into glucose (C₆H₁₂O₆) using light energy.
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