Outline the role of bile in emulsifying fats and oils to increase the surface area for chemical digestion

Explain the significance of villi and microvilli in increasing the internal surface area of the small intestine

Describe the use of: (a) iodine solution test for starch (b) Benedict’s solution test for reducing sugars (c) biuret test for proteins (d) ethanol emulsion test for fats and oils (e) DCPIP test for vitamin C