In which of the following underground stem modifications, food is not stored in the stem?
A
Rhizome
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B
Tuber
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C
Corm
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D
Bulb
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Solution
The correct option is D
Bulb
Rhizome, bulb, corm, tuber are all examples of underground stem modifications for food storage. However, in the case of bulbs like onion, food is not stored in the stem. Instead, it is stored in the fleshy leaf bases. The stem is reduced to a flattened disc that bears the fleshy leaves.