Multiple choice

Carbonic anhydrase is absent in

  1. gastric parietal cells

  2. red blood cells

  3. renal tubular cells

  4. blood plasma
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blood plasma is the fluid part of blood, making about half of the total blood volume. Plasma, itself, is around 90% water, with the 10% remainder including proteins, minerals, waste products, clotting factors, hormones, and immunoglobins. The enzyme carbonic anhydrase is absent in plasma.

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