All the amino acids invariably have following components, EXCEPT:
Correct answer: D. CH3
- A. NH2
- B. H
- C. COOH
- D. CH3
Explanation
Amino acids differ from each other with respect to the R group only, the rest of the components are constant.
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About Biological Molecules
The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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