Biological Science
5th Edition
ISBN: 9780321743671
Author: Scott Freeman
Publisher: PEARSON
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Chapter 45, Problem 13TYPSS
Summary Introduction
To review:
The way the icefish native to the Antarctic is capable of transporting the oxygen and carbon dioxide in their blood when there is a lack of hemoglobin.
Introduction:
Red Blood Cells (RBCs) play an important role in the body of an organism. They carry oxygen from the lungs to different tissues. RBC is produced in red bone marrow and each has a lifespan of 120 days. The level of hemoglobin or the number of RBCs determines the oxygen transport to the tissues. Hemoglobin is a globular protein, which contains two alpha chains, two beta chains and a non-protein pigment called heme. There are four heme units in one hemoglobin molecule and each heme unit can hold an iron, which binds to an oxygen molecule.
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