What is a primary source of iron?
A) Transferrin from plasma
B) Pepsin form pepsinogen
C) Bile from bilirubin
D) Heme from hemoglobin

Question

Quizplus · Accepted Answer

The primary source of iron is heme from hemoglobin, which is a protein found in red blood cells. Heme iron is better absorbed by the body than non-heme iron, which is found in plant-based sources such as spinach and lentils. Transferrin from plasma is a protein that binds and transports iron in the blood. Pepsin is an enzyme that breaks down protein in the stomach, and bile is a fluid produced by the liver that aids in digestion and absorption of fats. Neither of these are sources of iron.

What Is a Primary Source of Iron