Buffers are chemicals that help maintain normal body Ph. The two primary buffers in the body are
1. sodium and calcium ions.
2. sodium and bicarbonate ions.
3. bicarbonate and phosphate ions.
4. potassium and phosphate ions.
Correct Answer: 3
Rationale 1: Sodium and calcium are not buffers.
Rationale 2: Sodium is not a buffer in maintaining normal body Ph.
Rationale 3: Bicarbonate and phosphate are the two primary buffers of Ph balances.
Rationale 4: Potassium and phosphate are not the two primary buffers.
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