im just wondering about this. Please help. I forgot waht it looks like under a micrscope! I will award best answer to anyone who gives me an approprate answer:) Please help:)
In what ways do onion skin (epithelial) cells differ from the human skin cheek (epithelial) cells?
Onion "skin" isn't really skin at all.
An onion is made of layers and layers of specialized, nutrient-storing *leaves*. The "skin" is just the dead, dried up outer layers.
Onion cells tend to be much larger than human cells. They have a visible cell wall. Onion cells are long, tube-shaped, and tend to have a very large central vacuole, with their nucleus and organelles crowded around the inside of the cell wall.
Human cheek cells are thin, flat, pancake shaped, and fibrous. Depending on how you stain them, the nucleus may be visible roughly at the center of the cell. They have no cell wall.
~W.O.M.B.A.T.
Reply:Onion skin cells have a thick cellulose cell wall, making the individual cells much tougher and able to withstand pressure. Human cells have no cell wall, only a thin lipid-bilayer cell membrane. That is the biggest visual difference.
Reply:onion skin cells have cell wall. human cheek cells do not.
china lily
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