Last week, in 10th grade Biology, we looked at epithelial tissue from plants and animals–epithelial tissue from onions and epithelial tissue from human cheeks. Our microscopes have a magnification of 4X (40 times the original size) at the lowest magnification, and 40X (400 times) at the highest. The following pictures were taken by two students using their smartphones (iPhone 4S and iPhone 5):

Cork Cells at 4X.

Onion (Epithelial tissue) at 4X.

Onion cells–epithelial tissue–at 40X (Notice the well defined nuclei).

Human epithelial cells (Taken from the cheek) at 40 X