CHILD DEVELOPMENT PEDAGOGY

GROWTH DEVELOPMENT CHILD

SUMMATIVE ASSESSMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many molecules of water are removed in the synthesis of a dipeptide?
A
2
B
none
C
3
D
1
Explanation: 

Detailed explanation-1: -Explanation: A peptide bond is formed via the condensation of one amino acid’s alpha-carboxy group with the alpha-amino group of another amino acid. Thus, the joining together of two amino acids results in the loss of one water molecule.

Detailed explanation-2: -Explanation: The formation of a dipeptide (or polypeptide) is a dehydration synthesis in which one molecule of water is formed by the OH group on the carboxyl end and the H atom of the next amino acid on the amino end. One molecule of water is removed for every two amino acids that form a peptide bond.

Detailed explanation-3: -A process called dehydration synthesis is used to join amino acids by forming a peptide bond. During this process, a molecule of water (H2O) is removed (dehydration) in order to synthesize a dipeptide.

Detailed explanation-4: -Synthesis of lipids The three hydroxyl groups of the glycerol molecule and the carboxyl groups of three fatty acids interact to form ester bonds with the removal of three water molecules. This process is referred to as dehydration synthesis of lipids.

Detailed explanation-5: -in a proten, so 200 molecules of water would be required to break it down. The ratio of molecules of water to peptide bonds is 1:6.

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