In plants, if the leaves are not present there to produce food then plants can easily survive for a few days. If leaves are absent, the stored food in roots and stems helps to execute all the food requirements of that plant. Thus, the plant survives without leaves.Plants store the food that they produced by photosynthesis in the stem and roots.Starch is the food that gets stored in plant leaves. Starch is a polymeric carbohydrate consisting of numerous glucose units linked by glycosidic bonds. It acts as stored energy in plants.