2018 · Q33
Which one of the features is an indication for modification of stem of a plant?
General KnowledgeBiology
- APresence of ‘eye’ on potato
- B‘Scale’ found in onion
- C‘Tendril’ found in pea
- D‘Hair’ present in carrot
Explanation
The 'eyes' of a potato are buds borne on an underground stem (the tuber), which is a classic stem modification for food storage. The scale of an onion is a modified leaf, the tendril of a pea is a modified leaflet, and the hairs of a carrot are root hairs on a modified root. Only the potato eye indicates a modified stem.