A potato grows underground, then why it is considered as a stem but not a root??

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Solution

Edible potato is the modified underground stem called tuber. Potato tuber contains all usual parts which the stem contains such as nodes and internodes Nodes are represented by eyes on its surface. Each eye has a leaf scar and a bud. Eyes (buds) present on potato tuber produce new shoots that grow into typical stems and leaves. Roots arise from underside of tubers.

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Why are potatoes considered stems and not roots?

Name of plant	Vegetative parts from which plant grows
A) Money plant	1) Root
B) Ginger	2) Stem
C) Sweet potato	3) Leaf
D) Bryophyllum	4) Underground stem

Rhizome of ginger is like the roots of other plants that, grows underground. Despite this fact ginger is a stem and not a root. Justify.

Why potato is a stem instead of being a root ?

It's a modification of stem but appropriate reasons are required ..

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