Question

Which statement about the myoglobin structure is true?

A) Myoglobin is a multi-subunit protein.
B) Myoglobin contains four heme groups.
C) Myoglobin is primarily found in the cytoplasm of muscle cells.
D) Myoglobin is involved in the transport of oxygen in the bloodstream.

Answer 1

Myoglobin contains four heme groups and can bind and transport oxygen in muscle cells.

Step-by-step explanation:

The correct statement about the myoglobin structure is that it contains four heme groups. Myoglobin is a relatively small protein that contains an iron-porphyrin complex called heme. This heme group has a vacant coordination site where oxygen binds. Therefore, myoglobin can bind and transport oxygen in muscle cells.