Hemoglobins - process of respiration, Biology

Hemoglobins - Process of Respiration

Hemoglobins are the very well known of all respiratory pigments. The basic molecular unit of Hemoglobin contains a haem group bound to a protein or globin moiety. Haeme is a metalloporphyrin, to be much more specific, ferrous protoporphyrin. This serves as the prosthetic (serving as a prefix) group, with that is linked the protein. Hemoglobins of different species differ in their chemical and physical properties. These differences are attributable to differences in their globin moieties. The molecular weight of each unit molecule is usually about 16000 - 17000. The four-unit hemoglobin of vertebrates thus have molecular weights of almost 64090 - 68000. Relatively huge hemoglobin molecules are found in some non-chordates. For instance, in numerous annelids including earthworms (for example Lumbricus) and in the polychaete Arenicola the blood Hemoglobins has a molecular weight of nearly 3 million. Such large molecules frequently contain around 100 or more oxygen-binding sites.

Posted Date: 2/4/2013 5:36:14 AM | Location : United States

Related Discussions:- Hemoglobins - process of respiration, Assignment Help, Ask Question on Hemoglobins - process of respiration, Get Answer, Expert's Help, Hemoglobins - process of respiration Discussions

Write discussion on Hemoglobins - process of respiration
Your posts are moderated
Related Questions
Q. Can you define P-Waves? Changes in P-wave morphology have been well described in resting tracings and are very useful in identifying right and left sided hemodynamic alterat

Endocytosis is the uptake of extracellular macromolecules   across the plasma membrane into the cell. The objects to be ingested is progressively  enclosed by a  small  portion  of

Define Titrimetric Estimation of Carbohydrates? The Fehling's Soxhlet method is the commonly used method for titrimetric estimation of carbohydrates. In the following section y

How can a family prevent injuries from a fire in the home

Q. Explain the communication process? Communication is a process by which information is exchanged between individuals through a common system of symbols, signs, or behavior. C

Ciliates - Parasitic Protozoan The only ciliate of medical and veterinary importance is Balantidium coli which inhabit the large intestine of man, apes, monkeys and pigs. B. c

How do plants solve the problem of transporting substances throughout their tissues? In bryophytes the substance transport is completed by diffusion. In tracheophytes (pteridop

What is the function of a control group in an experiment? The function of a control group in an experiment is to be a stable to account for any effects a given environment has

Yersinia enterocolitica The genus Yersinia contains of 3 human pathogenic species, Y. enterocolitica, Y. pseudotuberculosis and Y. pestis, among which, Y. enterocolitica finds

Define Plasma or serum ascorbic acid levels? The serum or plasma ascorbic acid levels are used as an index of ascorbic acid nutrition of humans. The normal serum values vary ov