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Hemoglobin Structure and Function Quiz

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Questions and Answers

What is the function of heme in hemoglobin?

Part of an enzyme’s active site for hydrogen peroxide breakdown

Free radical scavenger

Reversible oxygen binder (correct)

Electron carrier for oxidation/reduction reactions

Which chromosome codes for the alpha chains of hemoglobin?

Chromosome 6

Chromosome 16 (correct)

Chromosome 11

Chromosome 22

What is the primary component of the globin part of hemoglobin?

4 polypeptide chains (correct)

Iron and protoporphyrin IX

Beta chains

Hemin (Fe3+)

Which of the following is a treatment for Porphyrias?

<p>Hemin (Fe3+) injection (B)</p> Signup and view all the answers

What is the genetic inheritance pattern of most Porphyrias?

<p>Autosomal dominant (D)</p> Signup and view all the answers

Study Notes

Hemoglobin Function and Structure

Heme is responsible for binding oxygen in hemoglobin, allowing it to transport oxygen from lungs to body tissues.
Alpha chains of hemoglobin are coded by genes located on chromosome 16.

Globin Part of Hemoglobin

The primary component of the globin part of hemoglobin is globin proteins, which surround the heme group.

Porphyrias

One treatment for Porphyrias is avoiding exposure to triggers such as sunlight, certain drugs, and hormonal changes.
Most Porphyrias follow an autosomal dominant inheritance pattern, meaning a single copy of the mutated gene is enough to cause the condition.

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Description

Test your knowledge of the structure and function of hemoglobin with this quiz. Explore the role of chromosome 16 in coding for alpha chains and chromosome 11 for beta chains, as well as the transport of oxygen and carbon dioxide in red blood cells. Delve into the components of hemoglobin, including the globin and heme, and their functions in electron transport and oxygen binding.