Which of the Following Normally Functions to Lower the PH

question 42

Multiple Choice

Which of the following normally functions to lower the pH of the cytosol?

• A) A Na⁺-H⁺ exchanger in the plasma membrane.
• B) A Na⁺-driven Cl--HCO₃- exchanger in the plasma membrane.
• C) A Na⁺-independent Cl--HCO₃-exchanger in the plasma membrane.
• D) A V-type ATPase in the lysosomal membrane.
• E) Both answers A and B above.

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