Cellular Basics

Plant Cell Basics

What are plastids?

Plastids are only found in plant and algae cells and are involved in cellular storage. Depending on their location in a plant and how much light they receive, proplastids develop into one of several kinds of plastids with different functions: Chloroplasts as the site of photosynthesis; leucoplasts store starches (for example, in tubers like potatoes); amyloplasts store starches; proteinoplasts store proteins; and elaioplasts store lipids. In addition, some proplastids develop into chromoplasts that store the pigments that give some flowers, fruits, and other plants—such as carrots and tomatoes—their red, orange, and/or yellow colors. Interestingly enough, it does not include the color green. (For more about plants, see the chapter “Plant Diversity and Structure.”)


This is a web preview of the "The Handy Biology Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App