There are 20 amino acids however our body can only manufacture 12 of these, thus eight of them we must get from our food. Therefore the 8 most important amino acids are the ones we get from our food (known as "essential amino acids").
These are:
1) Isoleucine
2) Leucine
3) Lysine
4) Methionine/ Cysteine
5) Phenylalanine/ Tyrosine-
6)Threonine
7) Tryptophan
8) Valine
There are a total of 16 possible dipeptides that can be formed from combining the four amino acids (4 amino acids * 4 amino acids = 16 dipeptides).
About, Four hundred.
Four amino acids are coded by a sequence of 12 nitrogen bases. This is because each amino acid is represented by a codon, which consists of three nitrogen bases. Therefore, to represent four amino acids, you need 4 codons, leading to a total of 4 x 3 = 12 nitrogen bases.
Amino acids held together by peptide bonds.
Three molecules of water are formed when four amino acids join together. This is the result of three amide bonds that underwent condensation reactions.
Carboyhydrate: monosaccharideProteins: amino acidNucleic acid: nucleotideLipid: triglyceride
Proteins are made up of monomers called amino acids.
There are actually 20 different amino acids, each one distinct in an R-group side chain. Did you mean what are the four parts of amino acids called? Because if so, they would be an amine (N) terminus (The NH2), carboxyl (C) terminus (The COOH), an H group of just a hydrogen atom, and an R group which is unique for each amino acid and identifies it from other amino acids. These four groups are bound to a central carbon atom. H O H\ / // N--C---C H/ \ \ R OH
They are made from amino acids.
There are 20 common amino acids (pre-modification). In a set of any four, each one could be one of 20, meaning there are 204 possible combinations: 160,000. If the question was meant to be "how many amino acids can be made from 4 triplet codons then the answer would still be exactly the same. Even though there are 4 bases, meaning there are 64 different codes possible, there are still only 20 amino acids available. If the question was meant to be "how many amino acids can be made from 4 bases" you can only make one (which could be any of 20 different residues), as you need three bases to code one amino acid. See the related question below for a listing of the types of amino acids.
amino acids?? 20 amino acids
Amino acids