Question

Which of these statements regarding modified roots and stem is incorrect?

• A. In Asparagus, adventitious root is modified for food storage
• B. Prop roots are for mechanical support
• C. Underground stems of potato, ginger, turmeric, zaminkand and colocasia are modified for photosynthesis
• D. Onion is an example of modified shoot

Answer 1

Answer: (C)

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.