Question

Which of the following best describes the structure of hemoglobin? Select all that apply.
a. Globin molecules contain iron.
b. Hemoglobin consists of four globin molecules.
c. Hemoglobin consists of two globin molecules.
d. Each globin molecule associates with numerous heme groups.
e. Each globin molecule surrounds a heme group.
f. Heme groups contain iron.

Answer 1

Option B,E,F. Each of the four globin molecules cells that make up hemoglobin encircles an iron-containing heme group. The quaternary structure of hemoglobin. It is made up of two distinct protein pairs called the and chains.

The and chains of hemoglobin contain 141 and 146 amino acids, respectively. Each component is covalently connected to a heme molecule, just like in myoglobin. Red blood cells include hemoglobin, which transports oxygen from the lungs to the body's tissue cells.

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