why dont onion leaves have chloroplast?

Answer 1

Well, onions are bulbs, which means that the part of the onion that we eat (and don't have any chloroplasts) are in the ground (soil), where they don't receive any sunlight. Chloroplasts are used to help make photosynthesis occur, and because bulbs are in the ground, they don't need chloroplasts.

Answer 2

If you are talking about the onion it self as in the bulb then no they cant becuae they are a root and so in the ground the dont need to. If you are talking about the whole onion then the tube like thing that comes out of the onion the green tube does.

Answer 3

The above ground parts of the leaves do have chloroplasts, and the below ground parts of the leaves do not have chloroplasts because they wouldn't be able to photosynthesize without light.

Answer 4

They do have chloroplast, but in order to see them, you have to look at them under the microscope. You can only see the chloroplast if you take a extremely thin layer of sample, almost like a membrane that you can separate from the petals.

Answer 5

onion leaves or layers, are underground. only water and minerals are taken in here. stalks are the green, above ground structures.

Answer 6

If you mean the bulb itself--the white or purple part--it's because that part actually grows underground and so never sees light.