KVPY Sample Paper KVPY Stream-SX Model Paper-1

  • question_answer
    Which one of the following biomolecules is correctly characterised?

    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.

    Correct Answer: A

    Solution :

    [a] Politic acid is one of the most common saturated fatty acids found in animals and plants. It has 16 carbons including the carboxyl carbon. Adenylic acid is a nucleotide consisting of adenine, ribose or Deoxyribose, and a phosphate group. It is a constituent of DNA or RNA. It is also called adenosine monophosphate. Amino acids are organic acids (with carboxylic group\[\operatorname{COOH}\]) having amino group \[\left( -N{{H}_{2}} \right)\] generally attached to carbon or carbon next to carboxylic group. The carbon also bears a variable alkyl group (R) or hydrogen or hydrocarbon. In alanine it is represented by methyl group.


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