BIOMOLECULES AND ENZYMES

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BIOLOGY

PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A polypeptide is polymer of amino acids held together by peptide bonds. The process of dehydration synthesis creates these peptide bonds, as shown in Figure 1.As shown in Figure 1, an amino acid must have which of the following properties in order to be incorporated into a polypeptide?
A
The ability to remain stable in the presence of water molecules
B
An R-group that is compatible with the R-group of the last amino acid incorporated
C
A central carbon atom that reacts with a nitrogen atom to form the peptide bond
D
The ability to form a covalent bond with both its NH2 group and its COOH group
Explanation: 

Detailed explanation-1: -Amino acids that are connected by a peptide bond are called a polypeptide chain. The polypeptide chain is composed of a sequence of amino acids dictated by the gene. A sequence of the amino acid chains provides diversity vital for meeting the demands of life.

Detailed explanation-2: -Which of the following best describes the formation of the bond shown in Figure 1 ? A covalent bond is formed between a carbon atom and a nitrogen atom along with the formation ofH2OH2O .

Detailed explanation-3: -Which feature of model 1 best illustrates how biological information is coded in a DNA molecule? Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a single nucleotide can be removed from a DNA molecule and replaced with an undamaged nucleotide.

Detailed explanation-4: -Answer and Explanation: The correct option is given by: A. A bond forms between the carboxyl functional amino acid and the amino functional group of the other amino acid.

There is 1 question to complete.
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