You have been supplied with a sample of food. How will you perform tests for the presence of starch and proteins in it?

Draw a labelled diagram to show the internal structure of a mammalian tooth with two roots.

Study the diagram given below and then answer the questions that follow:

(a) Name the parts labeled 1, 2, 3, 4, 5 and 6.
(b) Identify the tooth and give a reason to support your answer.
(c) Describe the structure of the part labeled '3'.
(d) Give the total number of the type of tooth mentioned in '1' above, in the mouth of an adult and state its function.