BIOMOLECULES AND ENZYMES

BIOLOGY

NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are 20 different amino acids. What makes one amino acid different from another?
A
Different carboxyl groups attached to an alpha (
B
Different amino groups attached to an alpha (
C
Different side chains (R groups) attached to an alpha (
D
Different alpha (
Explanation: 

Detailed explanation-1: -Amino acids differ from each other with respect to their side chains, which are referred to as R groups. The R group for each of the amino acids will differ in structure, electrical charge, and polarity.

Detailed explanation-2: -There are 20 amino acids that make up proteins and all have the same basic structure, differing only in the R-group or side chain they have. Amino acids are in an equilibrium between two acids with the proton (H+) moving between the amino group and the carboxyl group as shown below.

Detailed explanation-3: -Answer and Explanation: The side, or R, groups are what make one amino acid different from another, which include polar and non-polar, or hydrophobic. The polar group has molecules that are found at the surface proteins and possess a positive or negative charge. There are a total of eleven in this group.

Detailed explanation-4: -Each of the 20 amino acids has a specific side chain, known as an R group, that is also attached to the carbon. The R groups have a variety of shapes, sizes, charges, and reactivities. This allows amino acids to be grouped according to the chemical properties of their side chains.

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