DIGESTION AND ABSORPTION
1. Sketch an outline (or a flowchart) of protein digestion taking place in your alimentary canal. (3)
1. Pro-enzyme pepsinogen is a protein digesting enzyme (inactive form) of the human digestive system.
a. Name the digestive gland which secretes this enzyme.
b. How does pepsinogen change into its active form, pepsin?
c. Complete the following sentence:
Pepsin converts proteins into proteoses and …………….. (½ +1½= 2)
1. Observe the following figure.
a. Name the figure.
b. Label the parts A, B and D (2)
1. Construct a flowchart to demonstrate the digestion of proteins in different parts of human alimentary canal. (Hint: Any three steps only). (2)