Question

Which one of the following biomolecules is correctly characterized?

• A. Lecithin – A phosphorylated glyceride found in cell membrane
• B. Palmitic acid – An unsaturated fatty acid with 18 carbon atoms
• C. Adenylic acid – Adenosine with a glucose phosphate molecule
• D. Alanine amino acid – contains an amino group and an acidic group anywhere in the molecule

Answer 1

The correct option is D Alanine amino acid – contains an amino group and an acidic group anywhere in the molecule

Palmitic acid is a saturated fatty acid. It is mainly found in animals, plants, and microorganisms.

Adenosine monophosphate (AMP), also known as 5'-adenylic acid, is a nucleotide. It is used as a monomer in DNA and RNA. It is an ester of phosphoric acid and the nucleoside adenosine. AMP consists of a phosphate group, the sugar ribose, and the nucleobase adenine.

Lecithin is the major component of phospholipid portion of cell membrane.

Alanine is an amino acid which contains an amino group and an acidic group at alpha carbon (not anywhere in the molecule).

So, the correct answer is option d.