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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.
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∙ 7y ago
Wiki User
∙ 7y agoA 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.
Wiki User
∙ 7y agoThat'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.
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∙ 14y agoamino acids I have a test on this, I hope it helped!
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∙ 16y agoDuring the process called "translation".
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∙ 13y agoprotein
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∙ 11y agoProteins
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∙ 14y agoRibosomes
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∙ 12y agoprotein
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Is effect of pepsin on proteins a chemical reaction?
Yes, it is. Proteins in the presence of pepsin are converted into peptide chains (polypeptides). The reaction is : Proetins→ (In the presence of pepsin-to be written over the arrow) Polypeptides.
What chemical reaction is used to synthesize macromolecules like polypeptides and starch?
condensation reactions
What is a macromolecule made from carefully folded strings of amino acids?
Amino acids "join together" to form polypeptides. The amino acids are covalently bonded together via a condensation reaction to form a peptide bond. A chain of the amino acids bonded together is known as the polypeptide. A protein is made up of one or more polypeptides.
What is the term for a substance that is formed by a chemical reaction?
A product is a substance that is formed by a chemical reaction.
How are proteins formed by using the concept of using polymerization?
Proteins are formed by using the concept of using polymerization. This is a process whereby the amino aids are polymerized to form polypeptides or proteins.
What molecule is formed from polypeptides?
protein
Is effect of pepsin on proteins a chemical reaction?
Yes, it is. Proteins in the presence of pepsin are converted into peptide chains (polypeptides). The reaction is : Proetins→ (In the presence of pepsin-to be written over the arrow) Polypeptides.
What chemical reaction is used to synthesize macromolecules like polypeptides and starch?
condensation reactions
Which are formed by reaction?
Reaction products are formed.
What polymer is formed from amino acids found in the human body?
polypeptide?
What is a macromolecule made from carefully folded strings of amino acids?
Amino acids "join together" to form polypeptides. The amino acids are covalently bonded together via a condensation reaction to form a peptide bond. A chain of the amino acids bonded together is known as the polypeptide. A protein is made up of one or more polypeptides.
Are proteins also peptides?
PRoteins are formed as polypeptides from ribosomes. The polypeptide undergoes biophysical and chemical changes to get 2D and further 3D structure. So proteins in general, are polypeptides that are folded with cetrain stable conformation.
What is the name for a substance formed in a reaction?
The substances formed in a chemical reaction are called products
What is the term for a substance that is formed by a chemical reaction?
A product is a substance that is formed by a chemical reaction.
How are proteins formed by using the concept of using polymerization?
Proteins are formed by using the concept of using polymerization. This is a process whereby the amino aids are polymerized to form polypeptides or proteins.
How do i describe the condensation reaction for the formation polypeptides?
Polypeptides form with a dehydration reaction that produces an amide bond with water as a byproduct.NH2RCOOH + NH2RCOOH --> NH2RCONHRCOOH + H2OAn amine tail reacts with the carboxylic acid of another amino acid. An amide bond is formed.
How are polypeptides and amino acids related?
In Biology it bis tested that when proteins are broken down amino acids are formed this explains the relationship of proteins and amino acids and for polypeptides there is the theory that all peptides and poly peptides are polymers of amino acids.
