The major function of hemoglobin is to transport oxygen from the lungs to the body's tissues and then transport carbon dioxide out of the tissue back to the lungs. Each red blood cell contains approximately 280 million hemoglobin molecules.Continue Reading
A molecule of hemoglobin is made up of several smaller pieces. There are four polypeptide chains with each of those containing a single heme group. The key to processing the oxygen is the iron contained in each heme group. The iron molecules can each absorb one molecule of oxygen. This gives each hemoglobin the ability to transport four oxygen molecules.
There are two types of hemoglobin, which are the oxyhemoglobin and the deoxyhemoglobin. Oxyhemoglobin has a higher affinity for oxygen and the deoxyhemoglobin is more attracted to carbon dioxide. This means that the oxygen in the lungs binds to the oxyhemoglobin to be transported into the body and be absorbed. The deoxyhemoglobin picks up the carbon dioxide that is left after the body absorbs the oxygen and takes it back to the lungs to complete its process.
An important piece in the transportation of oxygen by hemoglobin is the molecules affinity to the oxygen. When hemoglobin picks up its first molecule of oxygen the affinity actually increases so that it picks up more oxygen. This domino effect continues until the molecule is full of oxygen.Learn more about Cells
The main function of the alveoli is the exchange of carbon dioxide for oxygen in the lungs. Alveoli are small air sacs of the respiratory system. For this gas exchange to occur, air must travel through different parts of the respiratory system.Full Answer >
InnovateUs states that the main function of hemoglobin is transporting oxygen from the lungs to other parts of the body. It is an important chemical in red blood cells that carries oxygen, and performs different effect modulation and gas transport duties.Full Answer >
The heart is a single organ, but it functions as a double pump sending oxygen-depleted blood to the lungs to pick-up oxygen and unload carbon dioxide, while simultaneously sending oxygen-loaded blood coming from the lungs to cells throughout the body. The heart's right ventricle pumps blood to the lungs, while the left ventricle pumps the oxygenated blood to the body cells. The left ventricle is the stronger of the two and performs the more demanding part of the double-pump work.Full Answer >
According to the Merck Manual Home Health Handbook, the primary function of erythrocytes, more commonly known as red blood cells, is to transport oxygen from the lungs to the body's many tissues. Red blood cells are also responsible for retrieving carbon dioxide from tissues and transporting it back to the lungs where it can be exhaled.Full Answer >