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Answer:
Each amino acid is composed of three main components.
1. Carboxylic group
2. amino group
3. Hydrogen atom
4. Alkyl or aryl group.
All these groups are attached to aplha carbon.
Similarities and differences:
In all amino acids, amino group, carboxylic group and hydrogen atom remain same, the difference lie in the variation of alky or aryl group.
Amino acids are similar because they all have an amine group, a carboxyl group and a R side chain but they are different because they all possess different R side chains.
- Amino acids are monomeric units of protein molecules. Amino acids are structurally made up of three components namely: amino group (-NH2), a carboxyl group (-COO) and a R side chain.
- There are about 22 amino acids in nature and they all possess the same general structure. This is the basis of similarity between them.
- However, each amino acid possess its own unique R side chain. This is the basis of differences between them.
In a nutshell, amino acids are similar because they all have an amine group, a carboxyl group and a R side chain but they are different because they all possess different R side chains.
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