Question

Diagrams of certain underground modifications of stem are given below. Select the option that correctly identifies them.

• A. a = Corm; b = Tuber; c = Bulb
• B. a = Rhizome; b = Tuber; c = Bulb
• C. a = Rhizome; b = Bulb; c = Tuber
• D. a = Tuber; b = Rhizome; c = Bulbil

Answer 1

The correct option is B

a = Rhizome; b = Tuber; c = Bulb

a = Rhizome - a continuously growing horizontal underground stem which puts out lateral shoots and adventitious roots at intervals.
b = Tuber - the swollen part of an underground stem of a plant, such as the potato, with buds from which new plant shoots grow.
c = Bulb - is a short stem with fleshy leaves or leaf bases that function as food storage organs during dormancy.