Function of amino acids, Biology

FUNCTION OF AMINO ACIDS

  1. Proteins are polymers of amino acids.
  2. Glycine form porphyrin nucleus in chlorophyll and heme (= haem) proteins like haemoglobin and cytochromes.
  3. Cysteine produces disulphide linkage among polypeptides.
  4. Tyrosine form skin pigment melanin and two hormones thyroxine (= thyroxin) and adrenaline.
  5. Histamine is formed during allergic inflammatory reactions. It causes dilatation of capillaries, decreases blood pressure, constricts smooth muscles (e.g., bronchi, uterus) and increases gastric secretions.
  6. Peptidolycans are structural units of prokaryotic cell wall.
  7. Glutathione is a coenzyme of oxidation-reduction reactions which consist of a tripeptide of lutamic acid, Cysterine and Glycine. The chemical is important in preventing oxidative damage to erythrocytes.
  8. Bradykinin is a powerful arteriolar dilatators and brings about increased capillary permeability.
Posted Date: 10/9/2012 5:37:07 AM | Location : United States







Related Discussions:- Function of amino acids, Assignment Help, Ask Question on Function of amino acids, Get Answer, Expert's Help, Function of amino acids Discussions

Write discussion on Function of amino acids
Your posts are moderated
Related Questions
Coelomoducts of Molluscs In Molluscs, like in Crustacea nephridia are absent. But certain of the larval pulmonates do possess protonephridia suggesting that they have been se

Does every amino acid have a central carbon? To which organic group is that central carbon bound? A carboxyl group -COOH, an amine group - NH 2 , an atom of hydrogen -H and a v

Explain the Factors Affecting GI of Foods? A variety of factors affect GI of foods. The factors which affect the rate of glucose absorption from starchy foods and therefore the

Photoreceptors Photoreceptors are concerned in absorption of light by photosensitive pigments. The chemical change involved produces the impulse concerned in the nerve cells.

Explain about the Bifidogenic Effect? Fructans selectively stimulate the growth of Bifidobacteria and Lactobacilli, while decreasing concentrations of E.coli, Clostridia and ba

Giemsa stain is a basic stain, thus the major chromagen is positively charged (cation). Why does this stain have an affinity for the bacteria cell wall, and for certain cellular co

Q. Illustrate Natural and Phylogenetic Classification? Natural Classification Natural systems of classification reflect the situation as it might have existed in nature. T

Explain about the Absorbed Moisture - water found in food? It is the moisture that has passed through cell walls and entered the cytoplasm of the cell. It is this form of water

Define about the Hyponatremia and Hypernatremia? Serum concentration of sodium is normally regulated within the range of 135 to 145 milimole per litre (a). Hyponatremia is defi