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Functional groups are a group of molecules attached to a carbon-based core of an organic molecule. Key functional groups are 3. phosphates
Key functional groups are aminos, phosphates and carbonyls.
Functional groups are groups of atoms that are found along the carbon backbone (composed of carbon and hydrogen atoms) of organic molecules and they impart specific chemical properties to those molecules. Functional groups include; amino, hydroxyl, carboxyl, phosphate, carbonyl and methyl groups.