AP BIOLOGY

ANIMAL PHYSIOLOGY

HUMAN CIRCULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The molecule that combines with oxygen to transport it
A
albumin
B
globulin
C
haemoglobin
D
seratonin
Explanation: 

Detailed explanation-1: -Hemoglobin (Heme + Globin) The protein hemoglobin is a molecule which is responsible for carrying almost all of the oxygen in the blood. It is composed of four subunits, each with a heme group plus a globin chain. The heme group is composed of a porphyrin ring which contains an iron (Fe) atom in its center.

Detailed explanation-2: -In the blood stream it combines with haemoglobin to form oxyhaemoglobin. This oxygen is taken inside the cells and carbondioxide is released. Carbon dioxide combines with haemoglobin to form carbaminohaemoglobin.

Detailed explanation-3: -Hemoglobin is a protein found in red blood cells. It contains iron, which allows it to transport oxygen. Each hemoglobin molecule can bind up to four oxygen molecules. This way, it can transport the oxygen from the lungs to the tissues that need it.

There is 1 question to complete.