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Molecular Level Of Genetics: Macromolecules


What is meant by essential amino acids? How many essential amino acids are there? Name 3 essential amino acids.

I am not asking fr anyone to DO my homework, but it is a good wat to check my answers and help me. I am doing Bio 12 thru correspondese and appreciate the help

2006-07-06 14:34:06 · 4 answers · asked by starruinstarla 1 in Science & Mathematics Biology

4 answers

There are actually 10 essential amino acids.
Arginine
Histidine
Isoleucine
Leucine
Lysine
Methionine
Phenylalanine
Threonine
Tryptophan
Valine

It can be said that mammals synthesize arginine, they alter or cleave it to form urea (portions of what we sweat and urinate out) so you could say there are 9 essential amino acids for mammals.

Essential amino acids are compounds that organisms require to survive to which they can not synthesize for themselves so they have to consume them through diet. Non essential amino acids are compounds that organisms can synthesize through amino acid pathways. Generally the non essentials are made from other amino acids going through metabolic pathways requiring enzymes and other compounds to catalyse the reactions.

Hope this helps.

2006-07-06 15:10:47 · answer #1 · answered by NONAME 1 · 4 2

Essential amino acids are ESSENTIAL which here means that they have to be present in the diet for the person to have a healthy and balanced protein metabolism.

The amino acids are :Methionine Threonine Valine Isoleucine Phenylalanine Tryptophan Leucine Lysine.

2006-07-06 14:43:20 · answer #2 · answered by mur_muh 2 · 0 0

Essential, meaning you gotta have them- amino acids are any of a large group of organic acids containing a carboxyl group, COOH, and an amino group,NH (look those up in your chemistry books!)- There are 25 that link together into polypeptide chains to form proteins that are necessary for all life- They are water soluble, crystalline, amphoteric electrolytes that have mirror-like isomeric forms, with right and left optical activity. 10 of them cannot be synthesized by the human body, and have to be consumed (eaten) in oder to get them in the body. You can find a lot out by looking in the Dictionary, and in the Encyclopedia......

2006-07-06 14:44:41 · answer #3 · answered by Star R 1 · 0 0

by essential amino acids, it means that this amino acids can't be "produced" by the organism so the organism has to get those amino acids from his diet.
there are eight essential amino acids
phenylalanine
leucine
arginine (essential in small organisms)
lysine
histidine (essential in small organisms)
isoleucine
methionine
threonine
valine

2006-07-06 14:39:39 · answer #4 · answered by Anonymous · 0 0

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