CET Karnataka Medical CET - Karnataka Medical Solved Paper-2003

  • question_answer
    A decrease in photosynthetic rate with increased availability of oxygen is called:

    A)  Warburg effect

    B)  Richmond Lang effect

    C)  Blackmans law of limiting factors

    D)  Emerson enhancement effect

    Correct Answer: A

    Solution :

    The atmosphere contains about 21% oxygen by volume which seldom fluctuates. An increase in oxygen concentration decreases photosynthetic rate and this phenomenon is known as Warburg effect. The reason of Warburg effect is photorespiration.


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