What plant parts store food as starch?
Plants can store starch in their roots. The root vegetables that we eat are starchy, such as carrots, beets, radish, rutabaga, etc. Potatoes are underground storage stems and are starchy. Fruits surround the seeds. Some fruits get starchy after they are over ripe and the sugars for the seeds combines to make the starch. Seeds have starch in the endosperm. We use this in wheat, and other grasses as well as corn. There is little starch in stems and leaves. Starch is a polymer of glucose molecules.
