What are the plants that store food by modifying stem. Write
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Explanation:
STEM MODIFICATION - DEFINITION
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.
MODIFICATION OF STEM - DEFINITION
The stem is the part of the plant that provides support and helps in conduction.
In some plants, the stem is modified for some other functions such as:
Underground stem modification- in such modification, stems remain under the soil and store the large amount of food e.g., potato, ginger etc.
Sub-aerial modification- in such modification, week stems lie horizontally on the ground and develop adventitious roots that help in vegetative propagation e.g., grass, pumpkin etc.
Aerial stem modification- in such modification, axillary buds are modified to thron and tendril for protection and support e.g., rose, pea etc.
Also available in
Class 11 Medical - Stem and its Modifications
Related Concepts
Characteristics and Functions of Stem
EXAMPLE
DEFINITIONS
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