New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    ______ activates a proton pump at the guard cell plasma

    membrane. 
    A Blue light Correct Answer Incorrect Answer
    B Red light Correct Answer Incorrect Answer
    C UV rays Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    Blue light is known to activate proton pumps in guard cell plasma membranes, resulting in stomatal opening.

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