Researchers Are Studying the Structure and Function of Hemoglobin

question 175

Multiple Choice

Researchers are studying the structure and function of hemoglobin.  Arterial and venous blood samples are obtained from enrolled volunteers with no health problems.  Red blood cells are isolated from whole blood by differential centrifugation, and the contents of the intact red blood cells are analyzed.  It is found that the concentration of chloride is much lower in the red blood cells in the arterial sample compared to the venous sample.  The activity of which of the following enzymes is most likely responsible for the observed finding?

• A)Bisphosphoglycerate mutase
• B)Carbonic anhydrase
• C)Glucose-6-phosphate dehydrogenase
• D)Na⁺-K⁺ ATPase
• E)Pyruvate kinase

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Definitions:

Healthy Range

The spectrum of values considered normative and beneficial for health indicators such as weight, cholesterol, or blood pressure.

Weight Measured

The determination of the mass of an object or individual, typically using scales or other measuring instruments.

Fatal Injuries

Injuries leading to death, either immediately or as a direct consequence of the damage sustained.

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Incidents involving vehicles in motion, which can result in damage and injury.