Question

5. What is the difference between starch and dietary fiber? And write some examples of soluble and insoluble dietary fiber.

Answer 1

Both starch and fiber are long chains of glucose molecule,but we are unable to digest the bonds between the glucose units in dietary fibres.

Therefore,fiber moves through the small intestine undigested while starch is broken down into glucose and absorbed.

There are two types of dietary fibres 1) soluble fiber and 2) Insoluble fiber.The soluble fiber attracts water and turns to gel during digestion.soluble fibres are commonly found in foods such as peas,oats,apple and citrus fruits.Insoluble fibres add bulk to the stool and appears to help food pass more quickly through the stomach and intestine.Insoluble fibres is found in foods like wheat flour,cauliflower,potatoes ,green beans etc.