Question

When two amino acids are joined together to form a peptide bond there is a net … (1 point) loss of one water molecule gain of one water molecule loss of one amino group gain of one carboxyl group?

Answer 1

The joining of two amino acids to form a peptide bond results in a net loss of one water molecule due to a dehydration synthesis reaction between the carboxyl and amine groups.

Step-by-step explanation:

When two amino acids are joined together to form a peptide bond, there is a net loss of one water molecule. This occurs through a dehydration synthesis reaction where the carboxyl group of one amino acid is linked to the amine group of another amino acid. As a result, a molecule of water is expelled, creating the peptide bond.

The process of forming a peptide bond involves a condensation reaction, also known as dehydration synthesis. During this reaction, a water molecule is eliminated, and the carboxyl group of one amino acid combines with the amino group of another amino acid, forming a peptide bond and releasing water as a byproduct.

The resulting structure is a dipeptide, consisting of two amino acids linked by a peptide bond. As more amino acids join in a linear sequence, a polypeptide chain is formed. When these chains fold and interact with each other, they give rise to the three-dimensional structures of proteins.

Answer 2

A peptide bond is a form of covalent bond that is formed when the carboxyl terminal of an amino acid condense with the amino terminal of another amino acid. In this process, one water molecule is lost (see attached image). There will be no gain of water as this reaction is not a hydration reaction. Amino and carboxyl groups are not lost as these groups are essential in forming the amino acids.