Who discovered hemoglobin?

Answer 1

The true color of blood is yellow when it is still inside our body. This is because of the plasma which is yellowish in color and is abundant in blood consisting of at least 50% to 60% of the human blood in circulation, this is the first part of the blood. The second part which consists of the hard part are the platelets, WBC, RBC which is of course "red" in color. However, Dr. William Harvey discovered what is known as the hemoglobin which makes the color of blood red outside the body because it contains more RBCs.

Based on the abovementioned, the color of blood inside the body is yellow because of the plasma that it contains. However, when blood is already exposed to oxygen and outside the human body, it transforms into color red because of the so called HEMOGLOBIN, which contains more RBC than WBC.

Conclusion:

Blood is both yellow and red in color depending whether or not it is inside the human body or not.

Answer 2

James B. Herrick discovered sickle cell anemia after seeing the sickle-shape cells of one of his students.

Answer 3

The first case of anemia was encountered in Chicago in the year 1904 when an African American man approached a doctor named James Herrick with the symptoms of the disease.