BIOMOLECULES AND ENZYMES

BIOLOGY

AMINO ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Though there occur around 300 amino acids in nature only 20 amino acids make up all proteins. This is because
A
of their structural similarity
B
these are more stable and easily syntheiszed
C
only these 20 amino acids are chemically versatile
D
of the universal nature of the genetic code for these 20 amino acids
Explanation: 

Detailed explanation-1: -More than 300 amino acids are listed in the Practical Handbook of Biochemistry and Molecular Biology, but only the twenty amino acids in the table below are used to synthesize proteins. Most of these amino acids differ only in the nature of the R substituent.

Detailed explanation-2: -Because amino acids can be arranged in many different combinations, it’s possible for your body to make thousands of different kinds of proteins from just the same 21 amino acids.

Detailed explanation-3: -Roughly 500 amino acids have been identified in nature, but just 20 amino acids make up the proteins found in the human body. Let’s learn about all these 20 amino acids and the types of different amino acids.

Detailed explanation-4: -The general structure of an amino acid is: Note the central carbon atom, to which 4 different groups are attached: an amino group (drawn by convention at the left), a carboxylic acid group (put at the right side), a hydrogen, and a side chain, or R-group. Only the R-group varies among the 20 different amino acids.

There is 1 question to complete.