Digital Interactive Content Energy in Food – Photosynthesis Starch Test Observe the parts of the leaf that are green and the parts that are yellow – how do you think this will affect the results of the starch test when iodine solution is added to the leaf? https://videos.files.wordpress.com/lAElXZ5x/testing-a-leaf-for-starch-for-igcse-biology_hd.mp4