What Does Bright Red Blood Indicate

Question

What does bright red blood indicate?
A) that oxygen is no longer bound to hemoglobin
B) that copper is bound to hemoglobin
C) that oxygen is bound to hemoglobin
D) that carbon monoxide is bound to hemoglobin

Accepted Answer

Bright red blood indicates that oxygen is bound to hemoglobin. Hemoglobin is a protein in red blood cells that binds to oxygen in order to transport it throughout the body. When oxygen is bound to hemoglobin, it gives the blood a bright red color.