Nucleotide Structure and Composition — NEET Biology
📚 Practice ConceptThe other type of macromolecule that one would find in the acid insoluble fraction of any living tissue is the nucleic acid. These are polynucleotides. Together with polysaccharides and polypeptides these comprise the true macromolecular fraction of any living tissue or cell. For nucleic acids, the building block is a nucleotide. A nucleotide has three chemically distinct components. One is a heterocyclic compound, the second is a monosaccharide and the third a phosphoric acid or phosphate.
Which of the following statements are correct about biomacromolecules and related concepts? S1: Proteins are homopolymers made of only one type of monomer repeating ‘n’ number of times. S2: Collagen is the most abundant protein in the animal world, while RuBisCO is the most abundant protein in the whole of the biosphere. S3: Polysaccharides like cellulose are homopolymers of glucose, whereas starch is a heteropolymer with different monosaccharides. S4: The right end of a polysaccharide chain is called the reducing end, and the left end is called the non-reducing end. S5: Nucleic acids are polynucleotides where the building block, a nucleotide, consists of a heterocyclic compound, a monosaccharide, and a phosphate group. S6: Lipids are considered true macromolecules due to their high molecular weight, similar to proteins and nucleic acids.
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