AP BIOLOGY

LABORATORY REVIEW

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When a dipeptide is formed from two amino acids which type of reaction takes place?
A
Denaturing of amino acids
B
Condensation reaction
C
Hydrolysis reaction
D
A reaction which is catabolism
Explanation: 

Detailed explanation-1: -Answer and Explanation: The type of reaction that produces a dipeptide from two amino acids is called dehydration synthesis or a condensation reaction. The name of this reaction is a result of the production of a water molecule that happens during this type of reaction.

Detailed explanation-2: -1: Amino acids undergo condensation to form a molecule called a dipeptide. The C−N bond is called a peptide bond. A peptide bond is the amide bond that occurs between the amine nitrogen of one amino acid and the carboxyl carbon of another amino acid. The resulting molecule is called a dipeptide.

Detailed explanation-3: -Amino acids can be linked by a condensation reaction in which an ―OH is lost from the carboxyl group of one amino acid along with a hydrogen from the amino group of a second, forming a molecule of water and leaving the two amino acids linked via an amide-called, in this case, a peptide bond.

Detailed explanation-4: -A peptide bond is formed by a dehydration synthesis or reaction at a molecular level. This reaction is also known as a condensation reaction which usually occurs between amino acids. As depicted in the figure given below, two amino acids bond together to form a peptide bond by the dehydration synthesis.

Detailed explanation-5: -In organic chemistry, a condensation reaction is a type of chemical reaction in which two molecules are combined to form a single molecule, usually with the loss of a small molecule such as water. If water is lost, the reaction is also known as a dehydration synthesis.

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