Shrek Would Love A Closer Look At The Layers Of An Onion
Usually, we toss onion skins into the trash without giving them a second thought. And typically, we’re only thinking about onions for prolonged periods because of our breath after adding it to a dish… but onions are pretty special. The pungent smell of onions is caused by a chemical called syn-propanethial-S-oxide, which is released when the onion’s cells are damaged. And did you know that onions are actually related to lilies, sunflowers, and other plants in the Allium family? According to RSS Science, “onion skin cells are well-organized and uniform in shape because the plant cells have something, we (animal cells) do not have – the cell walls. The cell walls are made up of cellulose, which protects the cell and maintains its shape.” With Eosin Y added to the onion skin, you can see the nucleus.