How to Test a Leaf for Starch: Step-by-Step Iodine Test Procedure #3582857 (License: Personal Use)

This diagram illustrates the standard laboratory procedure for detecting starch in plant leaves: first, the leaf is boiled in water to kill cells and soften tissues; next, it’s immersed in hot ethanol to remove chlorophyll, leaving a pale leaf; finally, iodine solution is applied-turning blue-black where starch is present. Each step is labeled and shown with proper lab equipment including a Bunsen burner, beaker, test tube, and dropper.

Used in educational settings (e.g., school biology labs, online science tutorials) to teach photosynthesis and carbohydrate testing; matches user intent for learning or demonstrating the starch test protocol.