AIIMS 2014 Botany Photorespiration MCQ Question
Assertion Presence of photorespiration is considered as a wasteful and energy consuming process in crop plants, ultimately leads to reduction in yield. Reason During C3 synthesis up 50% CO2 fixed may have to pass through photorespiratory process to form carbohydrate such as sucrose.
Both Assertion and Reason are true and Reason is the correct explanation of Assertion
Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
Assertion is true but Reason is false
Both Assertion and Reason are false
Correct Answer
Detailed Explanation
The correct answer is A because both the assertion and reason highlight the negative impact of photorespiration in C3 plants. The assertion states that photorespiration is wasteful and reduces yield, which is accurate, while the reason explains that a significant portion of fixed CO2 in C3 photosynthesis can be diverted into photorespiration, thereby supporting and explaining the assertion's claim of reduced efficiency and yield.
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