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Question #46897

Difficulty: 8/10 | 🟢 Free

The Question

The Hamburger phenomenon (chloride shift) is essential for the transport of carbon dioxide as bicarbonate. If a chemical inhibitor completely blocks the Band 3 anion exchanger proteins on the erythrocyte membrane at the systemic capillary level, which of the following physiological consequences will occur?

Options

  • A.

    The chloride ion concentration in the venous blood plasma will become significantly lower than in the arterial blood plasma.

  • B.

    The continuous hydration of CO2 within the erythrocytes will be severely impaired due to the intracellular accumulation of bicarbonate.

  • C.

    The intracellular pH of the erythrocytes will rise drastically due to the retention of alkaline bicarbonate ions.

  • D.

    The oxyhemoglobin dissociation curve will shift to the left due to the subsequent accumulation of CO2 in the peripheral tissues.

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Correct Answer

Step-by-Step Solution

Explanation

How the Examiner Thinks

Regulatory_Failure

Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.

Concepts Behind This Question

Metabolism vs. In-vitro Reactions|Chloride Shift (Hamburger Phenomenon)|Respiratory Volume vs. Capacity

Why This Question Is Tricky

Common Mistakes

Conceptual Pivot: Students often memorize the chloride shift mechanically ('Cl- goes in, HCO3- goes out') without understanding its thermodynamic purpose.

The shift prevents product inhibition of Carbonic Anhydrase.

The question also tests the 'Normal vs.

Inhibited' trap in Option A, where students might reflexively choose the normal physiological event rather than the consequence of the inhibition.

Quick Facts About This Question

Question Information

SubjectBiology
ChapterThe Living World - Class 11
ConceptMetabolism vs. In-vitro Reactions
Difficulty8
Cognitive Load5
Target Solve Time120 sec
AccessFree