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Hemoglobin is composed of globin, a class of respiratory proteins that can reversibly bind oxygen through the ferroporphyrin ring, and heme, which is widely found in bacteria, fungi, plants, and animals, and shows great structural and functional diversity.
Heme is an iron porphyrin compound, which is a prosthetic group of hemoglobin and a procogroup of myoglobin, cytochrome, peroxidase, catalase, etc. Heme, which is involved in hemoglobin synthesis, is mainly synthesized in juvenile red blood cells and reticulocytes in the bone marrow.
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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 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 allows red blood cells to transport oxygen.
Hemoglobin (hemoglobin; haemoglobin;hb;hgb ) Each hemoglobin molecule is composed of four molecules of globin and four molecules of ferrous heme, and each heme is composed of four 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.
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Answer B This question examines the characteristics of hemoglobin, hemoglobin characteristics: it is easy to bind to oxygen in places with high oxygen concentration, and it is easy to separate from oxygen in places with low oxygen concentration.
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Hemoglobin = white matter in the egg beam + blood sedin (iron).
Therefore, the constituent elements of hemoglobin are: C, H, O, N, S, FE
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Answer]: A hemoglobin is often called"Hemoglobin", is the main component of red blood cells, so b is not true. The decrease in hemoglobin is an important indicator for the diagnosis of anemia, but the type of anemia cannot be determined.
The normal range of male blood red egg pants white is 120 160g L, so E is not correct. To sum up, the answer is A.
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Hemoglobin is the most important component of red blood cells, and it has () and () compositions, such as Qingsheng slag front.
Correct Answer: Heme Beads;
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The main ring of red blood cells is a substance called hemoglobin, an iron-containing binding protein made up of globulins and heme, the key part of which is heme, which is capable of carrying oxygen molecules. Since each red blood cell has four heme-containing molecules, one red blood cell can carry four oxygen molecules. The color of red blood cells varies slightly depending on the amount of oxygen they have.
The amount of oxygen contained in our human blood is one of the key factors that determine the color of blood. Arterial blood is bright red in color because of its high oxygen content; Venous blood contains less oxygen, so it is dark red in color. When we accidentally cut **, a red liquid will flow out of the wound, which is the blood of our body.
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Hemoglobin is a special protein that transports oxygen in red blood cells, is the protein that makes blood red, and is composed of globin and heme, and its globin part is a tetramer composed of two different pairs of globin chains (chain and chain). The International System of Units (SI) is now used in a variety of ways, based on the number of grams of hemoglobin per liter (1,000 milliliters) of blood. The use value of hemoglobin and red blood cells is similar, and the increase and decrease of hemoglobin can refer to the clinical significance of red blood cell increase and decrease.
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Hemoglobin is an iron-containing protein.
It is an important part of red blood cells.
The function of hemoglobin is to transport oxygen and a portion of carbon dioxide.
Lower-than-normal hemoglobin causes anemia.
I wish you good health.
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Hemoglobin is a protein in higher organisms that is responsible for carrying oxygen. It is also the only non-membrane protein in red blood cells. Hemoglobin in the human body is made up of four subunits, two subunits and two subunits, and the four subunits of hemoglobin can be automatically assembled into 2....
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Hemoglobin = protein + heme (with iron).
So the constituent elements of hemoglobin are: C, H, O, N, S, FE.
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