State a use for each of the given in the biology laboratory:
a) Buffer solution.
b) Biuret test.
a) In the course of your practical studies you employed a solution of iodine in various investigations. State the two different uses of the iodine solution.
b) State the two different uses of a water bath in the biological investigations.
c) In the course of your practical studies you found out that heart rate and breathing rate raise with exercise.
Describe why this is the case.
d) In the course of your practical work you made a transverse section (T.S.) of a dicot stem for microscopic the examination.
How did you make the T.S.?