I would probably go with a green onion, a leek, or a shallot, based on your description.
The bulb of the onion does not but the leaves of the onion plant do.
foliage leaves are photosynthetic and shoud be green and the scale leaves are for protection , should be tan or orange brown.
The green cells in an onion plant are located in the leaves. These cells contain chlorophyll, which is responsible for photosynthesis and gives the leaves their green color.
The bulb of an onion is formed from modified leaves. While photosynthesis takes place in the leaves of an onion containing chloroplast, the little glucose that is produced from this process is converted in to starch (starch granules) and stored in the bulb.
Onion bulb: The fleshy scales of an onion bulb are modified leaves that store nutrients for the plant. Pitcher plant: The pitcher-shaped leaves of a pitcher plant are modified to trap and digest insects for additional nutrients.
Food in the form of sugars is produced in the leaves of the onion plant through photosynthesis. These sugars provide the energy needed for growth and development of the plant. Onions themselves grow in the ground as bulbs, which store the nutrients and energy produced in the leaves.
in potatoes right below the skin and in onions it is stored in the leaves of them
Because an onion develops in the ground, and chloroplasts develop in the sunlight. Therefore no chloroplasts form. Think of it this way: Tree leaves contain chloroplasts because they contain chlorophyll in order for the leaves to turn colors. But who has ever heard of an onion changing colors because it's fall?! Onions dont needchloroplasts, so they dont have them.
It is big because before leaves sprout, the bulb is the source of food because without leaves, there is no photosynthesis thus no food unless the bulb feeds the plant (which as I said before, it does). The bulb of the onion also stores energy. Hope this satisfies!
Onions when growing have a kind of 'reedy leaf'. about 2 inches wide and some can be quite long. Good Luck
Scale leaves are small, protective leaves found on bulbs, corms, and rhizomes. They serve to protect the plant's growing point and store nutrients. They may also help reduce water loss and provide insulation to the plant.
You can't see chloroplasts in an onion skin cell since the onion was underground. When the onion is underground, the sun can't reach the onion so the onion skin cells can't make glucose. The onion does have chloroplasts in its cells at the top of the onion. That's where he sunlight can reach the onion.