NTA Abhyas NEET2020BotanyMorphology of Flowering PlantsPractice
Which of these statements regarding modified roots and stem is incorrect?
Options
- AIn Asparagus, adventitious root is modified for food storage
- BProp roots are for mechanical support
- CUnderground stems of potato, ginger, turmeric, zaminkand and colocasia are modified for photosynthesis
- DOnion is an example of modified shoot
Correct answer
C. Underground stems of potato, ginger, turmeric, zaminkand and colocasia are modified for photosynthesis
Step-by-step solution
Asparagus has fasciculated roots that arise in a bunch from a lower node of the stem and become fleshy for the storage of food. It is a type of modified adventitious root. Underground stems of potato (tuber), ginger and turmeric (rhizome), zaminkand and colocasia (corm) are used for food storage and vegetative propagation. Onion is a modified underground stem called the bulb. This stem is reduced and has a disc-like structure and surrounds with numerous fleshly scaly leaves.