1. (a) Arrange the following lipid molecules in the order of their relative melting points. Н.С —о-с-R Н.С — о-С-R Н.С — о-С-R" НС —о-С-R HĊ -0-Ć-R' НС —о-с-R" H2C -0-Ċ-R H2C -0-C-R' H2C -0-C-R" VI VII VIII 18°0 181 cisÃ9 -o-c-R") = 18'1transA9 (b) Give your reasons for your answer. (c) On heating lipid VI with aqueous NaOH, all the ester linkages were hydrolyzed. Draw the structure of each product of the hydrolysis. (e) Giving a reason for your answer, predict what would happen to the solubility of these products in water if, after the hydrolysis, excess acid was added to the medium to acidify it.
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
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