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How many polypeptide chains form the globin portion of the molecule?
Wiki User
∙ 13y ago
4 polypeptide chains, each bound to a heme group to form hemoglobing
Wiki User
∙ 13y ago
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Two alpha chains and two gamma chains make up the protein globin part of?
hemoglobin F
Which part o the hemoglobin molecule does carbon dioxide attach?
Hemoglobin refers to a red protein responsible for transporting oxygen in the blood of vertebrates. The part of the hemoglobin molecule that carbon attaches to is the heme molecule.
Why and hpw RBCs die?
RBC's die because they eject their nucleus during their formation in order to make more room for hemoglobin. Without a nucleus they are unable to make repairs and due to the stresses of traveling within the cardiovascular system. As a result they last on average about 120 days.Worn out RBC's are removed from circulation in the spleen and liver. The heme and globin portions of hemoglobin are split apart. The globin is broken down into amino acids which can be used to synthesize other proteins. Iron is removed from the heme portion and used to synthesize new heme molecules. The non-heme portion goes through a series of chemical transformations and eventually ends up as something called sterocobilin which is what gives feces it's characteristic brown color.
What vessels carry oxygen-rich blood throughout the body?
haemo globin carry oxygen to various parts of the body through blood
Several of the different globin genes are expressed in humans but at different times in development what mechanism could allow for this?
differential gene regulation over time
Does the hemoglobin molecule has polypeptide chains?
Yes. Hemoglobin consists of four heme groups as well as a globin. Globin is a type of protein - proteins are made of polypeptide chains.
Which element is a major component of hemoglobin?
Haemoglobin is made up of a protein called globin which is bound to a red pigment called heme (hence the name haemoglobin) Globin is made up of 4 chains (polypeptide chains) embedded inside each of which is a heme molecule, the latter has an iron atom (in ferrous state) in it. It is the iron atom which carries a molecule of oxygen. As there are 4 chains this means that there are 4 iron atoms which means that 4 molecules of oxygen can be carried by each haemoglobin. Globulin
What is the iron-containing portion of the hemoglobin molecule called?
The iron containing part of hemoglobin is the 'heme' molecule.
What happens to the globin portion of the hemoglobin?
Nothing
Which Stains are used for staining globin chains of hemoglobin?
eosin
The polypeptide chain of hemoglobin that is designated beta and that when deficient or defective causes various anemias?
Beta-Globin
Two alpha chains and two gamma chains make up the protein globin part of?
hemoglobin F
Does oxytocin have a secondary structure or tertiary protein structure?
Yes it does. It also commonly contains quaternary structure.Secondary structure refers to folding and bonding interactions between atoms of the polypeptide backbone, either forming alpha-helices or Beta-sheets. Oxytocin contains both of these secondary structures as well as Beta-turns. Beta-sheets come in anti-parallel and parallel versions. Parallel means that the direction of the associated chains run in the same direction; N-terminus to C-terminus. Anti-parallel means that one or more of the associated chains run in an opposite direction to the others.Tertiary structure refers to interactions between side chains of the polypeptide residues. a good example of this is the disulfide bonds liking two cysteine residues which does occur in Oxytocin.Quaternary structure refers to association of separate polypeptide chains. Oxytocin can be found as a single chain in which case there is no quaternary structure. It is not uncommon however to find it as a pentamer, tetramer, or dimer. Conditions play a major factor in effecting its quaternary structure. whether it is in aqueous solution, biological conditions (cells), or crystallized. Another good example of quaternary structure is Hemoglobin. Hemoglobin is a dimer of dimers. 2 alpha-globin chains and 2 beta-globin chains.
What does the medical terminology combining form -globin mean?
The medical terminology combining form -globin refers to a protein component found in hemoglobin. It is specifically related to the protein portion of hemoglobin molecules.
What substance is needed for hemoglobin synthesis?
Hemoglobin is the protein that, along with water, makes up a red blood cell. Hemoglobin is made from two substances, heme and globin. In order for hemoglobin synthesis to take place, two chains of globin must connect to one another. Without these chains, hemoglobin synthesis cannot happen.
How many globin molecules are in each hemoglobin?
There are four nearly-identical individual protein chains in hemoglobin.
Which part o the hemoglobin molecule does carbon dioxide attach?
Hemoglobin refers to a red protein responsible for transporting oxygen in the blood of vertebrates. The part of the hemoglobin molecule that carbon attaches to is the heme molecule.
