MCAT Question of the Day
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    Q:

    		 Cholesterol is a compound within membranes which acts to increase fluidity under low temperatures and decrease fluidity during high temperatures. If the membrane is composed of phospholipids with higher melting points, the membrane will be less fluid. Which of the following may act to increase the fluidity of a membrane?
    		 

    A

    		 Increasing cholesterol concentration in the membrane

    B

    		 Increasing intracellular calcium concentrations

    C

    		 Increasing the average length of the phospholipids

    D

    		 Increasing desaturation within the membrane



    Membrane Transport and Signalling |
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