The reddish color of the skin of the lips is primarily due to the presence of which pigment?
A) Hemoglobin
B) Myoglobin
C) Melanin
D) Carotene
E) Keratin

Question

Quizplus · Accepted Answer

The reddish color of the lips is primarily due to the presence of hemoglobin, a protein in red blood cells that binds with oxygen and gives blood its red color. The blood vessels in the lips are close to the surface, giving the lips their characteristic redness.

The Reddish Color of the Skin of the Lips Is