Tomato Cells under Microscope
To see tomato cells under microscope, simply squeeze a bit of tomato juice on a clean glass slide and gently place a cover slip over it.
Micrographs
Below is the micrograph of the tomato cells:
Tomato cells are floating in the juice and hence are not connected to each other. The thick black circles are air bubbles that got trapped between slide and cover slip. I was not able to get rid of them after couple of tries.
Tomato cells are very big compared to onion skin cells. In fact, they are more than 25 times bigger than onion skin cells! Below is the micrograph of onion skin cells for comparison:
