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Explanation:
8. Polysaccharides are long chains of monosaccharides linked by glycosidic bonds. Three important polysaccharides, starch, glycogen, and cellulose, are composed of glucose. Starch and glycogen serve as short-term energy stores in plants and animals, respectively. The glucose monomers are linked by α glycosidic bonds.
9. Nucleic acids exhibit secondary structure, justify with example. Answer: ... The secondary structure of a nucleic acid molecule refers to the basepairing interactions within a single molecule or set of interacting molecules. DNA and RNA represent two main nucleic acids, however their secondary structures differe.
10. Some examples of primary metabolites are lactic acid, amino acids, vitamins, lipids, carbohydrates, proteins, etc. Examples of secondary metabolites are alkaloids, steroids, phenolics, essential oils, etc.
11.Schematically represent primary, secondary and tertiary structures of a hypothetical polymer say for example a protein. Answer: ... Mainly secondary structure in proteins possess two forms, i.e., helix and p-pleated sheet. helix is a polypeptide chain spirally coiled to form a right handed helix.
12. The chemical composition of nucleotide consists of a phosphate group, a sugar and a nitrogenous base. A nucleoside has a chemical composition that consists of a sugar and a base without the phosphate group. ... Some of the key examples of nucleosides are the same as nucleotides only with the addition of phosphate groups.