Why is a leaf boiled in ethanol when testing for starch?

  1. To kill bacteria
  2. To remove the chlorophyll
  3. To add starch
  4. To make it photosynthesise
Answer

B) To remove the chlorophyll

Removing chlorophyll lets the iodine colour be seen. O Level Biology · Topic 6 Plant Nutrition · 6.1 Photosynthesis

Biology MCQ · More O Level Biology: Plant Nutrition MCQs · Practise