4. Write the equation for the formation of maltose, a disaccharide, which consists of two glucose units. Classify the reaction. 5. How many water molecules are needed to break down an oligosaccharide that contains 10 glucose units? Classify the reaction. 6. Glycerol, a part of glycerophospholipid, is highly attracted to water and often used in skin care products such as lotions and cosmetics. Draw the structure of glycerol. Explain its attraction to water and on of alueorol with water describe the inter