Red blood cells are packed full of a protein called hemoglobin. Hemoglobin has a molecule of iron in each protein molecule. This hemoglobin is what carries oxygen. The oxygen binds with the iron.
Blood carries oxygen from the lungs to the rest of the body. To do this blood cells have a specialized protein that is able to bind oxygen to the blood cell. This protein is known as hemoglobin.
Haemoglobin. That's what gives red blood cells their colour, too.
A decrease in the blood's ability to transport oxygen is called hypoxemia. This can be caused by various factors such as low oxygen levels in the air, lung diseases, or heart conditions. It can lead to symptoms like shortness of breath, fatigue, and confusion.
The circulatory System is divided into three major parts: The Heart; The Blood. Red Blood Cells pick up oxygen in the lungs and transport it to all the body cells.
Arteries are defined as blood vessels that carry blood away from the heart, regardless of the oxygen content. While most arteries transport oxygen-rich blood, such as the aorta, the pulmonary arteries are an exception, as they carry oxygen-poor blood from the heart to the lungs. The name "artery" is based on their function of transporting blood away from the heart, not the specific type of blood they carry.
Horseshoe crabs have blue blood due to the presence of copper-based molecules called hemocyanin that carry oxygen. This blue blood helps them to efficiently transport oxygen throughout their bodies.
The name of an amino acid normally found in the blood and used by the body to build and maintain tissues is homocysteine. The name of the protein found in red blood cells that plays an essential role in oxygen transport is hemoglobin.
Haemoglobin. It is rich in iron and that is how it carries oxygen. Oxygen binds to iron very well. When it does the iron rusts giving iron a red color. That is why your blood is red because of the rust in it. Your blood also holds a certain amount of oxygen in the liquid portion like all liquids.. It would take more air than there is in the whole tubing to kill you. Thus little tiny air bubbles in an IV line would be absorbed into your blood like all the other air already there and your body would not notice a thing. But I digress….
Blood Cells?
The scientific name for the blood cells that carry oxygen to the body's cells is erythrocytes.
Deoxygenated blood, also referred to as oxygen-poor blood or venous blood. This blood is returning to the heart after delivering oxygen to the body's cells.
The protein "Hemoglobin" is responsible for the red color. Each hemoglobin molecule can bind up to 4 oxygen atoms. When fully loaded with oxygen atoms the protein takes on a more bright red color. When deprived of oxygen the protein takes on a darker red/blue color.