Question

Which of the following are tap roots modified for food storage?

• A. Fusiform root
• B. Conical root
• C. Fasciculated roots
• D. Napiform root

Answer 1

Answer: (A), (B), (D)

The correct options are
A Fusiform root
B Conical root
D Napiform root

Tap roots are modified into different structures to carry out specific functions like food storage. Such roots are referred to as modified tap roots. There are different types of modified tap roots like fusiform, napiform, conical, tuberous or tubercular roots which store food. In fusiform type, the primary root of the system is swollen at the middle and tapers gradually at both the ends forming a spindle-shaped structure. In napiform roots, the base region of the root is swollen becoming almost spherical in shape, and then it abruptly tapers towards the lower end, forming a tail-like structure. In the conical form of root modification the roots are swollen and are broad at the base, the apex part gradually tapers forming a cone-like structure like in carrot. Fasciculated roots are modified adventitious roots. In this type, tuberous roots are developed from the base of the stem in a cluster.