The Basic Difference Between Heme and Protoporphyrin Is That

question 141

Multiple Choice

The basic difference between heme and protoporphyrin is that

• A) protoporphyrin contains iron.
• B) heme is protein-bound and protoporphyrin is not.
• C) heme contains iron while protoporphyrin contains Ca2+.
• D) protoporphyrin contains no metals, but heme contains iron.
• E) none of the other answers is correct.

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Definitions:

Absorbable Form

A type of medical or pharmaceutical product designed to be absorbed by the body, often referring to sutures or drugs.

Pruritus Ani

Itching around the anus.

Itching

An uncomfortable sensation on the skin that provokes the desire to scratch, often caused by irritation, allergies, or infections.

Anus

The external opening of the anal canal.