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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!

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12y ago

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Is onion a bulb?

Onions grow seeds on the tops of their stalks, not inside the bulbs. Their umbels (the flower head on the top of the plant) will dry out and then you have seeds. The bulbs themselves never have seeds inside.


Are you killing something alive inside of an onion if you cook it?

An onion is a bulb, which is basically a living plant (which is why if you convince it that it's spring it will sprout again). So cooking it you kill the plant itself.


Which part of a onion plant do you eat?

The bulb. It's just like a tulip bulb you might plant in a garden. A bulb is made of modified leaves, so each layer of the onion and its paper are specialized leaf tissue. They are used by the plant as energy storage; at the end of the growing season the plant undergoes die-back where the above ground portion dies and the sugars from it get concentrated in the bulb. The energy stored is used to grow the plant back next season.


Why is an onion a root?

It is not! An onion is a bulb. A swede, turnip, carrot, and so on, are root.


Do onions have leaves?

Onions when growing have a kind of 'reedy leaf'. about 2 inches wide and some can be quite long. Good Luck


Why is an onion considered a root?

It is not! An onion is a bulb. A swede, turnip, carrot, and so on, are root.


Where do onions come from?

The edible part of the onion is called the bulb. These are true bulbs, as they can be lifted, stored and replanted.It is also not uncommon for the stems (shoots) to be eaten, these are normally cut up and used in salads much the same as Chives. The common garden onion is botanically known as Allium cepa


Which part of a plant cell will you never find in a onion bulb?

As an onion cell is a cell, no cells are located in it, but maybe you mean organelles, which literally mean "tiny organs" and make up every cell. In that case, onion cells lack chloroplasts because they grow underground and therefore don't use the sun to produce energy (chloroplasts are involved in photosynthesis).


Why the chloroplasts is not present in the onion cell?

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.


Do the cells of the onion bulb possess chloroplasts?

Onions are the root bulbs of onion plants. The plant itself contains chloroplasts, which cause the green colour, whereas the onion bulb itself contains other pigments and few, if any, chloroplasts.


Why are the inner leaves of onion so thick?

The Edible Onion is naturally a biennial plant, so it takes two years to reach maturity and flower. This means it needs to store food over the winter period, It does this by thickening the bases of its leaves to form a bulb during the first year of growth. The bulb stores sugars and starches for the next growing season and we harvest the onion at this stage to make use of this food store.


What is the rounded stem or a shoot of an onion called beginning with b?

Oh, dude, that thing you're talking about is called a "bulb." It's like the round base of an onion where all the layers hang out. So, yeah, next time you're chopping onions, just remember you're slicing through those bulb buddies.