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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.

Respuesta :

Hemoglobin contains the iron atom  and the four globin molecules. Heme is the group containing iron atom. Each globin molecule surrounds a central heme group to which a polypeptide chain is joined up. Statements b, e and f.

What is the central atom in the structure of hemoglobin ?

Iron is the central atom in the structure of hemoglobin.

The structure of hemoglobin is composed of four protein chains.There are 4 iron atoms in each molecule of hemoglobin. Each globin molecules is consisted of two linked pairs of polypeptide chain.

Each hemoglobin molecule is composed of two alpha chains and two beta chains and each is linked with a heme group that is containing a central metal that is iron.

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