Respuesta :
Answer:
Peptide bonds are the bonds that hold two amino acids together.
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Answer:
A. Peptide bonds
Explanation:
Each amino acid molecule consists of an amino group [tex](NH_2)[/tex] and carboxyl group [tex](COOH)[/tex] and variant side chain [tex](R)[/tex] attached to an alpha carbon [tex](C)[/tex]. When the two amino acid come along each other, the positively charged [tex]a[/tex]-amino group of one amino acid reacts with the negatively charged carboxyl group of another amino acid releasing water molecule [tex](H_2O)[/tex]. This reaction is called condensation reaction and the linkage formed b/w two amino acids is called peptide linkage or peptide bond.
Attachment comment:
That's how amino acids join by means of peptides bond to form long polypeptide chains if proteins.
Vocab:
Peptide: A compound containing two or more amino acids in which the carboxyl group of one acid is linked to the amino group of the other.
Amino acid: Any of a class of organic compounds that contain at least one amino group, -NH2, and one carboxyl group, -COOH: the alpha-amino acids, RCH(NH2)COOH, are building blocks from which proteins are constructed.
Protein: Any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the diet of all animals and other nonphotosynthesizing organisms, composed of 20 or more amino acids linked genetically controlled linear sequence into one or more long polypeptide chains, the final shape and other properties of each protein being determined by the side chains of the amino acids and their chemical attachments: proteins include such specialized forms of collagen for supportive tissue, hemoglobin for transport, antibodies for immune defense, and enzymes for metabolism.
