Question

what's the difference between flower and leaf cells

Answer 1

The cells in this flower appear longer and are stacked in lengthwise forming what looks like thin lines. There is also a larger vein running through the flower.

The cells in the leaf of the plant appear to be a lot more circular. They are arranged in small clumps instead of lines. It also looks like you can see darks masses in the center of the cells which could be the nuclei.