The Phosphate Buffer System Helps Regulate PH Within Cells

question 16

Multiple Choice

The phosphate buffer system helps regulate pH within cells. If too much hydrogen ion is released within the cell reducing the pH, what reaction will occur?

• A) HPO ₄ ^-2 + H ⁺ → H ₂PO ₄ ^-
• B) HPO ₄ ^-2 → H ₂PO ₄ ^- + H ⁺
• C) H ⁺ → H ₂PO ₄ ^- + HPO ₄ ^-2
• D) H ₂PO ₄ ^- → HPO ₄ ^-2 + H ⁺

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