What do Anacharis cells have that onion cells lack?

Question

I'm having bit of a trouble on my lab with that and this question "What structures were visible after staining that were not visible before the staining of the onion cell with iodine?" "How are mitochondria and chloroplasts similar and different (strcture and function)?" If your lazy and know that a site that has one or all of these answers please link it thanks.

Answer 1

If you were looking at onion epidermal cells from an onion bulb:

1. Anacharis has chloroplasts and onion epidermis does not
2. nucleus and nucleoli
3. Mitochondria have a smooth outer membrane and a highly folded inner membrane. Cellular respiration happens in the mitochndria. Chloroplasts have a double membrane on the outside and stacks of membrane disks (stacks are grana, individual disks are thyakoids) in a gelatinous matrix (stroma) on the inside. Photosynthesis happens in the chloroplasts.

Answer 2

Because they grow underground and have no use for them in total darkness.