What is the reaction by which polypeptides are formed?

Answer 1

Giving a little more details to my colleagues' answers above, I would point out that the main characteristic of the protein synthesis, from the union of amino acids in the ribosome (process called "translation"), is the formation of the peptide bond. This is the most important characteristic of the secondary and tertiary structure of polypeptides and therefore of proteins. Peptide bond was discovered by Linnus Pauling and Robert Corey in the 1940s that determined that is a chemical bond with a rigid, planar structure which, Pauling pointed out, is a consequence of resonance interactions that give the peptide bond an about 40% double bond character.

Therefore, the backbone of a polypeptide chain is a linked sequence of rigid planar peptide groups which can rotate in different tortion angles (rotation angles or dihedral angles) giving the proper tertiary structure in a complex process called: "protein folding" in order to be a polypeptide molecule with biological activity.

Answer 2

Polypeptides are formed through a condensation reaction known as peptide bond formation. This reaction occurs between the carboxyl group of one amino acid and the amino group of another amino acid, releasing a water molecule. The resulting bond between the two amino acids is called a peptide bond.

Answer 3

A peptide bond is formed between two adjacent amino acids held by tRNA molecules (in a ribosome), forming the first two links of a chain. This is repeated with a new amino acid to the growing peptide chain.

A peptide chain is a newly formed protein made up of amino acids covalently bonded by peptide bonds. The peptide chain then folds properly either on its own or with the help of other proteins to form a polypeptide.

Answer 4

That's a good question! Polypeptides are formed from amino acids by peptide bond. In a polypeptide chain the sequence of amino acids is fixed. It is decided by the gene that is situated in the chromosome. From the gene you get the messenger RNA. It goes to the ribosome. Transfer RNA brings in the amino acids. The sequence of amino acids is denoted by the Messenger RNA. At a time multiple copies of polypeptides are formed in a ribosome. The whole chain is broken down in the absence of the single amino acid. It's all is very interesting to know about.

Answer 5

amino acids I have a test on this, I hope it helped!

Answer 6

During the process called "translation".

Answer 7

protein

Answer 8

Proteins

Answer 9

Ribosomes

Answer 10

protein