Essential and non – essential amino acids, Biology

Assignment Help:

Essential and Non – Essential Amino Acids

The requirement of essential amino acids differs from organism to organism. Some bacteria require only one amino acid in sufficient quantities in the growth medium to be able to synthesise the rest. In contrast mammals certainly cannot fulfil their protein requirements by only one amino acid. How can one determine which amino acid is essential and which is non-essential? The nutritional requirements are determined by deletion experiments i.e. by removing a single nutrient from the diet and then observing the growth and health of the animal. By this method it was found out that 10 amino acids are essential for the growth and well-being of rats.

Table:  Amino acids classified according to dietary needs of human and rats

1820_Essential and Non – Essential Amino Acids.png

Absence of anyone of these except arginine produces nutritional deficiency and even death. Rats are able to synthesise arginine but at such a slow rate that it does not meet the demands of normal growth. To what extent the animal requires a particular amino acid in diet depends on the synthetic ability of the body cells. Organisms with marked synthetic ability, for example, bacteria (mentioned earlier) require a few essential amino acids. Organisms like mammals, that require many essential amino acids have a marked synthetic disability.


Related Discussions:- Essential and non – essential amino acids

Proteins requirement in dyslipidemia, Q. Proteins requirement in dyslipidem...

Q. Proteins requirement in dyslipidemia? Proteins: While the quantity of protein does not impose any significant impact on the serum lipoproteins, it is the quality of protein,

Explain the absorption of itraconazole capsules, Explain The absorption of ...

Explain The absorption of itraconazole capsules It is decreased with concurrent use of drugs that reduce gastric acidity, such as antacids, H2-receptor blockers, proton pump in

List the five major phases of the cell cycle, List the five major phases of...

List the five major phases of the cell cycle, and briefly explain what happens during each phase. G1 phase: the cell grows. S phase: DNA is copied. G2 phase: the cell prepares

Define protein needs in nutrient requirement, Define Protein needs in Nutri...

Define Protein needs in Nutrient Requirement and Dietary Management? It is one of the most crucial nutrient which determines the ultimate outcome of burns. Amino acid requireme

Explain submarginal scalloped rectangular, Explain Submarginal Scalloped Re...

Explain Submarginal Scalloped Rectangular - Limited Mucoperiosteal Flaps - Modification of Rectangular flap in that the Horizontal incision placed in the buccal and labial atta

Oceanic islands, Oceanic islands are interesting and somewhat specialised b...

Oceanic islands are interesting and somewhat specialised biomes. Islands which have broken away from the main continents have similarity of flora and fauna related to the continent

Phobias, PHOBIA S - Common phobias for - Spiders Lizards Snak...

PHOBIA S - Common phobias for - Spiders Lizards Snakes Cockroach Crowded places Vast open places Closed small chambers.

What are cnidocytes, What are cnidocytes? What is the name of the capsule i...

What are cnidocytes? What is the name of the capsule inside the cnidocyte? What are the biological functions of this structure? Cnidocytes are specialized cells present in coel

Psyiology, I need help with p-p, q-q and r-r intervals and heart rates

I need help with p-p, q-q and r-r intervals and heart rates

Ecology, Which of the following are likely to help conserve soil and preven...

Which of the following are likely to help conserve soil and prevent erosion?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd