Plant cells without walls, known as protoplasts, are very fragile, and it has been difficult to keep them alive under a ...

So let's begin by looking at some plant cells. Cut a small chunk from your onion. Be careful with knives. Ask an adult if you need help. Peel a thin layer off that chunk and put it on your slide.

Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls ...