Each hemoglobin molecule
A) consists of 4 protein chains and 4 heme groups.
B) can carry 1 oxygen molecule.
C) contains red-pigmented globin molecules.
D) contains 1 iron atom.
E) is bluish in color when bound to oxygen.

Question

Quizplus · Accepted Answer

Hemoglobin molecules consist of four protein chains (globins) and four heme groups, each of which can bind one oxygen molecule, allowing a single hemoglobin molecule to carry up to four oxygen molecules.

Each Hemoglobin Molecule