Write an experiment to show that chlorophyll is necessary for photosynthesis.

We can show that chlorophyll is required for photosynthesis using the starch experiment. Experiment on chlorophyll is necessary for photosynthesis are:

• Prepare a potted plant with variegated leaves such as croton and place it in a dark place without direct sunlight for 3 days. This stops photosynthesis and weakens the plant.
• The plants are then placed in the sun for 6-8 hours.
• Plants can now photosynthesize and produce starch.
• Mark the green part of the leaf and draw it on a piece of paper. Mark the area in green and yellow.
• The green part contains chlorophyll, the yellow part does not.
• Leaves are soaked in boiling alcohol to decolorize. The leaves slowly lose their green color and turn into alcohol.
• Soak the discolored leaves in the iodine solution. Remove the leaves from the iodine solution and rinse with distilled water.
• Remove the leaves from the distilled water and place them in a Petri dish.