Question:

Select the correct pair of globulins and drug with which they show binding:

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Ceruloplasmin = Copper (Cu). Transferrin = Iron (Fe).
Updated On: May 28, 2026
  • A, B, D Only
  • B, C, D Only
  • A, B and C Only
  • A, C and D Only
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The Correct Option is D

Solution and Explanation

Step 1: Concept
Plasma proteins like globulins bind to specific drugs and endogenous substances.

Step 2: Meaning

A. Gamma globulin binds specific antigens. B. Ceruloplasmin primarily binds copper, not Vitamin D. C. Transferrin binds ferrous/ferric ions. D. Beta-2 globulin binds cortisone.

Step 3: Analysis

Pairs A, C, and D represent accurate binding affinities found in human plasma. Pair B is incorrect as ceruloplasmin is a copper-carrying protein.

Step 4: Conclusion

The correct choices are A, C, and D.

Final Answer: (D)
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