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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.
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∙ 12y ago
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∙ 11y agoBecause onion bulbs are underground, what is the use of having chloroplasts? Theonionplants have green shoots where there are chloroplasts. You can ...
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∙ 11y agoDepends on which part of the onion. As a general rule the onion itself contains no chloroplasts as it spends its time underground, whereas any green shoots are full of chloroplasts as they absorb sunlight for photosynthesis.
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∙ 9y agoOnion bulbs by themselves do not have chloroplasts because they reside underground. However, the leaves on onion plants do contain chloroplasts as they exist above ground.
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∙ 13y agono it doesnt. because the cells of an onion bulb are not exposed to sunlight (normally) they do not have an opprotunity to photosynthesize, so do not, therefore, need chloroplats
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∙ 14y agoThe part of the onion you eat is underground. So no, onion has no chloroplasts in their cells.
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∙ 12y agoYes, just in the leaf part not the actual onion that you eat
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∙ 14y agono they dont i study it in class
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∙ 11y agoyes
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∙ 13y agono
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Why do onion cells do not have chloroplast?
Onion cells do not have chloroplasts because the onion is underground where there is no light. Without light chloroplasts have no purpose, so onion cells just don't have them.
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 onion cells still have chloroplasts when they have iodine on them?
The iodine has no connection as to whether the cells have chloroplasts or not. If the cells are green, then they do have them. Adding iodine doesn't change that fact. Not all cells of the plant have chloroplasts. The ones in the soil don't so if you are working with the bulb, it doesn't have chloroplasts in the first place.
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 are chloroplasts not ordinarily visible in an unstained onion cell?
1. Because the chloroplasts that actually photosynthesize are found in the tops of the onions - the part that is actually above ground. There's no reason for there to be chlorophyll in the onion skin itself because these grow underground
Do onions have chloroplasts in their cells?
The bulb of the onion does not but the leaves of the onion plant do.
Why do onion cells do not have chloroplast?
Onion cells do not have chloroplasts because the onion is underground where there is no light. Without light chloroplasts have no purpose, so onion cells just don't have them.
Why are chloroplasts absent in onion epidermal cells and potato tubular cells?
Onion bulb is not photosynthetic.So chloroplasts are absent.
What is the cell of onion peel?
The cell of an onion peel is a plant cell. The cells of the onion peel do not have chloroplasts because the onion bulb (white part) grows under ground and its cells do not carry out 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.
What structure can be seen in Elodea leaf but not present in epidermal cells of onion cells?
Chloroplasts, because the onion does not undergo photosynthesis. The onion plant does but the onion itself is a bulb.
Do onion cells still have chloroplasts when they have iodine on them?
The iodine has no connection as to whether the cells have chloroplasts or not. If the cells are green, then they do have them. Adding iodine doesn't change that fact. Not all cells of the plant have chloroplasts. The ones in the soil don't so if you are working with the bulb, it doesn't have chloroplasts in the first place.
Do onions cell have chloroplasts?
No
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 are chloroplasts not ordinarily visible in an unstained onion cell?
1. Because the chloroplasts that actually photosynthesize are found in the tops of the onions - the part that is actually above ground. There's no reason for there to be chlorophyll in the onion skin itself because these grow underground
What plant organelle is missing from the onion cell?
Because, it is very small. You will need a electron microscope to see it.
Why dont onion cell have chloroplasts and chlorophyll?
Chloroplasts contain chlorophyll which help to make the food for the plant (glucose). First, chloroplasts are essential for the process of photosynthesis. You need to know that the onion bulb we refer to in daily life grows underground, which is not exposed to the sunlight, it only stores food for the plant. And you also need to know, the process of photosynthesis, requires lights. Because onion bulbs are underground, what is the use of having chloroplasts? The onion plants have green shoots where there are chloroplasts. You can simply tell that there is no chloroplast in onion bulbs because they are not green. Onion bulbs just basically shares a similar environment with root cells.You can check the images in Google and you actually see that onion cell does not have any chloroplasts.
