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This review explores the fundamental biomolecules of life, including carbohydrates, lipids, proteins, and nucleic acids. These essential molecules are composed of chains, with carbohydrates made of sugars, proteins formed by amino acids, and nucleic acids comprised of nucleotides. We examine the critical elements that constitute 99% of living matter: carbon, hydrogen, oxygen, nitrogen, and phosphorus. Understanding these components is crucial to comprehending the molecular basis of life and how they interact within biological systems.
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