not used.РThe four main classes of molecules in biochemistry are carbohydrates, lipids, proteins, and nucleic acids. РDehydration synthesis: Monomers(micromolecules) -- polymers(macromolecules)?Biological activity: different macromolecules --plexesРglucose (C6H12O6),РMoleculesРCarbohydratesРEnergy storage and providing structure, cell to cell interactions munications. Рharides, include glucose (C6H12O6), fructose (C6H12O6), and deoxyribose (C5H10O4). ?dehydration synthesis: harides-harides-harides/haridesРharides?Sucrose: glucose+ fructose, the most familiar carbohydrate.?Lactose: glucose+galactose. lactose intolerance, lactase ?decreases. ?harides and harides?one long linear chain, or branched.?cellulose(plants) , glycogen(animal)РA molecule of sucrose (glucose + fructose), a haride.