WAEC - Biology (2016 - No. 10)
The steps below are involved in the testing of a leaf for starch. Study them carefully and answer the question:
I. Decolorize them
II. Dip decolorized leaf in warm water
III. Place leaf in boiling water
IV. Add iodine solution
The CORRECT order for the test is?
I, II, III and IV
I, III, II and IV
II, III,, I and IV
III, I, II and IV