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IGNOU BCHET 149 on Molecules of Life would involve covering various biomolecules and their significance in living organisms in a clear and comprehensive manner. While I can't provide a full guidebook, I can outline key topics and suggest resources for each.Introduction to Biomolecules:Definition and classification of biomolecules.Importance of biomolecules in living organisms.Overview of the major classes of biomolecules.Carbohydrates:Structure and classification of carbohydrates.Functions of carbohydrates in living organisms.Metabolism and biological roles of carbohydrates.Lipids:Structure and classification of lipids.Functions of lipids in living organisms (e.g., energy storage, cell membrane structure).Metabolism and biological roles of lipids.Proteins:Structure and classification of proteins.Functions of proteins in living organisms (e.g., enzymes, structural proteins, transport proteins).Protein structure-function relationships.Nucleic Acids:Structure and classification of nucleic acids (DNA and RNA).Functions of nucleic acids in living organisms (e.g., genetic information storage, protein synthesis).DNA replication, transcription, and translation processes.Enzymes:Introduction to enzymes and their catalytic properties.Mechanisms of enzyme action and enzyme-substrate interactions.Regulation of enzyme activity in living systems.Bioenergetics:Overview of cellular metabolism and energy production.Role of ATP as a universal energy currency in living organisms.Metabolic pathways involved in energy metabolism (e.g., glycolysis, citric acid cycle, oxidative phosphorylation).Hormones and Signaling Molecules:Overview of hormones and signaling molecules in living organisms.Mechanisms of hormone action and signal transduction pathways.Role of hormones in regulating physiological processes.Vitamins and Coenzymes:Classification and functions of vitamins.Role of vitamins as coenzymes in enzymatic reactions.Deficiency diseases and health effects of vitamin deficiencies.Resources and Further Reading:Recommended textbooks for biochemistry and molecular biology (e.g., "Biochemistry" by Jeremy M. Berg et al., "Principles of Biochemistry" by Albert L. Lehninger et al.).Online resources such as videos, articles, and tutorials.Practice exercises, problem-solving guides, and self-assessment tools.