Question

Which among the following is incorrect about rhizome?

(a) Thick stems that grow horizontally under the soil are rhizomes

(b) Nodes and internodes are present in this kind of roots and the adventitious roots arise from the node

(c) Rhizomes are unaffected during unfavourable conditions

(d) The edible part of ginger is a root

The question was posed to me during a job interview.

The doubt is from Flowering Plants Morphology in division Morphology of Flowering Plants of Biology – Class 11

Answer 1

The correct answer is (d) The edible part of ginger is a root

The explanation: Thick stems that grow horizontally under the soil are rhizomes. Nodes and internodes are present in this kind of stem and the adventitious roots arise from the node. Rhizomes are unaffected during unfavourable conditions. The edible part of ginger is the rhizome i.e. the underground stem.