Biology, asked by jay100svp5wf0h, 1 year ago

define stem modification

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Answered by krocks

stem modification is a morphological process whereby an affix occurs simultaneously with a root or stem

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sajin2: To perform specialized functions the stemand the aerial branches get modified in different ways which is called as stem modifications. These modifications are of 3 kinds, viz., underground, sub-aerial and aerial. The sub-aerial modifications are also called metamorphosed stem because their structures are massively modified and sometimes cannot be predictable as stems.

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Answered by Anonymous

Answer:

In some plants the stems are modified to perform the function of storage of food, support, protection and vegetative propagation.

For food storage: Rhizome (ginger), Tuber (potato), Bulb (onion), Corm (colocasia).

For support: Stem tendrils of watermelon, grapevine, cucumber.

For protection: Axillary buds of stem of citrus, Bougainvillea get modified into pointed thorns. They protect the plants from animals.

For vegetative propagation: Underground stems of grass, strawberry, lateral branches of mint and jasmine.

For assimilation of food: Flattened stem of Opuntia contains chlorophyll and performs photosynthesis.

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