Biology 0610: HUMAN NUTRITION Topical Past Paper Questions

A student estimated the concentration of vitamin C in a drink by comparing it to solutions with known vitamin C concentrations. The concentration of vitamin C in a sample can be estimated by testing it with iodine solution. The test is done by adding drops of iodine solution to t…

(a) Describe what is meant by the term physical digestion. [2] (b) Fig. 1.1 is a diagram of the human digestive system. Fig. 1.1 State the letter from Fig. 1.1 that shows one part where: > physical digestion occurs > > glucagon is produced > > bile is produced. [3] (c) Explain th…

The small intestine is where most digested foods are absorbed. The small intestine has many villi. These are some features of villi. 1 Each villus contains a network of capillaries. 2 Each villus contains a lacteal. 3 The surface of each epithelial cell is covered with microvilli…