Biomolecules: Structure & Function — NEET Biology
📚 Practice Concept1 How to Analyse Chemical Composition? 9.2 Primary and Secondary Metabolites 9.3 Biomacromolecules 9.4 Proteins 9.5 Polysaccharides 9.6 Nucleic Acids 9.7 Structure of Proteins 9.8 Enzymes
Which of the following statements about the chemical analysis of living tissues and the resulting fractions are correct? S1: The acid-soluble pool generally contains biomolecules with molecular weights ranging from 18 to approximately 800 Daltons. S2: Lipids are technically small molecular weight compounds, but they are found in the acid-insoluble fraction because they form water-soluble vesicles upon disruption of cell membranes. S3: Proteins, nucleic acids, and polysaccharides are examples of true biomacromolecules, typically having molecular weights above ten thousand Daltons. S4: The acid-insoluble fraction represents the entire chemical composition of the cytoplasm, while the acid-soluble pool consists primarily of inorganic constituents. S5: Grinding a living tissue in trichloroacetic acid and straining it through cheesecloth allows for the separation of the acid-soluble pool and the acid-insoluble fraction.
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