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NEET Biology Cell - The Unit Of Life Question Bank Self Evaluation Test - Cell - The Unit of Life

  • question_answer
    Sodium and potassium pumps are common in many cells. Which of the following are necessary for the pumps to work?

    A) ATP-driven pumping proteins.

    B) A signal to activate the pumps.

    C) A concentration gradient to work against.

    D) All of the above

    Correct Answer: D

    Solution :

    [d] Temperature, molecule size, molecule charge, and concentration gradients all affect the rate at which diffusion takes place.


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