Heme metabolism: practice question

The best answer is C, Haptoglobin. Haptoglobin binds free hemoglobin released into plasma, limiting oxidative injury and renal loss; levels may fall during intravascular hemolysis.

Transferrin transports iron in plasma.

Albumin maintains oncotic pressure and transports various molecules.

Ferritin stores intracellular iron.

It tests Heme metabolism in Biochemistry. The correct option holds because: Correct: haptoglobin scavenges free plasma hemoglobin.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

Build one table of enzyme deficiency, disease, inheritance and key finding, then revise it by spaced recall. Then use the flashcards and the other Biochemistry questions on this site to test what stuck.

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.