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Why are onions underground stems?
This type of modification of stem for storage of food is called bulb. The stem is extremely condensed in the form of a disc and is surrounded by fleshy scales. Since the scales (modified leaves) do not resort to photosynthesis, the bulb remains underground to overcome adverse atmospheric conditions of summers.
What is the examples of root plants?
Potatoes, garlic and onion are stems that grow underground which we know best. Yam and ginger are also examples of stems that grow underground. Rhizome, tuber, bulb and corm are other examples of underground stems that are not known by many people.
Why doesn't the onion bulb contain chloroplast?
Because onion bulb develops underground and it is meant for food storage to overcome adverse environmental conditions. The skin of the bulb need not loose water and take part in gaseous exchange. Therefore, it does not have guard cells and stomata.
Are tulips annuals or perennials?
They will keep coming back, year after year. The leaves die in the winter, but the bulb underground remains viable.
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.
Modified underground stem is?
Bulb, tuber and rizhome are all modified underground stems.
Where does the bulb for the onion plant grow?
underground
What is the underground stem of an onion called?
a bulb
Is a radish an underground root or underground stem?
TurnipTurnip is a bulbA bulb is an underground stem
Is a bulb an underground flower?
The bulb is a root, from which a flower can grow. Only roots grow underground; flowers grow above ground. A bulb is an underground storage organ present in lilies and other plants, consisting of a short stem with surrounding fleshy leaf bases and lying dormant over winter.
An onion or a daffodil reproduces by means of an underground structure called a?
Bulb
What are the types of underground stem?
Bulb, Corm, Rhizome, Stolon, Tuber.
What is underground fleshy reproductive stem of crocus or gladiolus?
It's A bulb
How do you get in the underground dome on Counterfeit Island?
On the Underground Tour, there is a high arch with a light bulb hanging down. Climb the wire, and jump to the right to get the picture piece there.
Where is the underground arch on Counterfeit Island?
On the underground tour, there is a high dome with a light bulb hanging down, Climb the wire to the top, then jump to the right to get the picture piece.
Where does union occur in plants?
The bulb of the onion (the part that we usually eat) is a bunch of underground leaves growing from an underground stem. The leaves are not for photosynthesis, but they're for storing nutrients.
What part of a plant is a radish?
The root or bulb where all the carbohydrate is stored underground
