What does hemoglobin in red blood cells do

Hemoglobin, also known as heme, is the main component of red blood cells, its main physiological function is to transport oxygen in the body, can transport oxygen to various tissues in the body, and the tissues then use oxygen to oxidize sugar, fat and other energy substances, and release energy for exercise.

Hemoglobin, also known as hemoglobin, is an essential substance in the human body, is the main component of red blood cells, can bind to oxygen, transport oxygen and carbon dioxide. The hemoglobin content is a good indicator of the degree of anemia.

Normal range: 130 175g for men (; Females 115 150g l (; Newborns 170 200 g l (.

Decreased hemoglobin can cause various anemias (such as aplastic anemia, iron deficiency anemia, sideroblastic anemia, megaloblastic anemia, hemolytic anemia, thalassemia, etc.), massive blood loss (such as traumatic hemorrhage, surgical hemorrhage, postpartum hemorrhage, acute gastrointestinal bleeding, chronic blood loss caused by ulcers, etc.), leukemia, postpartum, chemotherapy, hookworm disease, etc.

Erythrocyte. If the hemoglobin is not listed as normal, your result may be a pre-anemia manifestation, and more likely it is a detection error, which is caused by the disproportion of red blood cells to hemoglobin when the instrument analyzes.

There was no problem with the results.

It binds to oxygen in the lungs, and then is transported through the systemic arteries to various places throughout the body where it is needed, where the oxygen is released, and then it travels through the body and fights the ring vein back to the lungs to recombine with oxygen. The cycle begins for 120 days (the average life span of red blood cells is 120 days).

The characteristics of hemoglobin are: in places with high oxygen content, it is easy to combine with oxygen; In places with low oxygen content, it is easy to separate from oxygen This property of hemoglobin makes red blood cells have the function of transporting oxygen, in addition, red blood cells also transport a part of carbon dioxide The main function of plasma is to carry blood cells, transport nutrients and waste products Therefore, the function of red blood cells determined by the characteristics of hemoglobin is to transport oxygen

Therefore, a

Question 1: What is the function of hemoglobin Hemoglobin is a protein (abbreviated as HB or HGB) that is responsible for carrying oxygen in higher organisms. It is a protein that gives blood a red color.

Hemoglobin is made up of four chains, two chains and two chains, each with a cyclic heme that contains one iron atom. Oxygen binds to iron atoms and is transported by the bloodstream. The properties of hemoglobin are:

In places with high oxygen content, it is easy to combine with oxygen; In places with low oxygen content, it is easy to separate from oxygen. This property of hemoglobin gives red blood cells the ability to transport oxygen.

Hemoglobin (hemoglobin; haemoglobin;hb;HGB ) Each hemoglobin molecule is composed of only one molecule of globin and four molecules of ferrous heme, and each heme is composed of 4 pyrrole rings, and there is an iron atom in the ring**. The iron in hemoglobin binds reversibly to oxygen (oxyhemoglobin) in the bivalent state if the iron is oxidized to a trivalent state. Hemoglobin is converted to methemoglobin and loses its oxygen-carrying capacity.

Globin accounts for about 96% and heme accounts for 4%. and are similar to myoglobin, except that the peptide chain is slightly shorter: the subunit is 141aa; The subunit is 146aa.

and subunits face each other across a cavity. In mammals, hemoglobin accounts for 97% of the dry weight of red blood cells and 35% of the total body weight. On average, hemoglobin binds 70 times more oxygen per gram than plasma dissolved oxygen.

Question 2: What are the functions of hemoglobin and enzymes? Glycoprotein is generally found in red blood cells and carries oxygen. There are many kinds of enzymes, some play a role in digestion, some make DNA unwind, enzymes have specificity, and the function of each enzyme is different.

1. The nature is different.

Red blood cells: Red blood cells, also known as red blood cells, are often abbreviated as RBC in English in routine laboratory tests, and are the most abundant blood cells in the blood, and are also the main medium for vertebrate animals to transport oxygen through the blood, and also have immune functions.

Hemoglobin: Hemoglobin is a special protein that transports oxygen within red blood cells, is a protein that makes blood red, and is composed of globin and heme, the globin part of which is a tetramer composed of two different pairs of globin chains (chain and chain).

2. The functions are different.

Red blood cells: The function of red blood cells is to transport oxygen, carbon dioxide, electrolytes, glucose, and amino acids, which are essential for the body's metabolism.

Hemoglobin: The main function of hemoglobin is to transport oxygen.