Leucoplasts are a type of organelle found in plant cells, specifically in non-photosynthetic tissues. They are responsible for the storage of starches, oils, and proteins. Unlike chloroplasts, which contain chlorophyll and are involved in photosynthesis, leucoplasts are colorless and do not participate in light absorption. These organelles play a crucial role in the metabolism of plants by converting and storing energy. When plants need energy, leucoplasts can break down the stored substances into usable forms. They are particularly abundant in roots and tubers, such as potatoes, where energy storage is essential for growth.