Change set

Pick exam & year, then Go.

Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q110 (CDS-I/2003) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Plant anatomy physiology Answer Verified

In which one of the following are winged seeds found?

Result
Your answer: —  Â·  Correct: C
Explanation

Winged seeds are a specialized adaptation for wind dispersal (anemochory), where the seed coat or fruit wall extends into a thin, papery wing to increase surface area and air resistance [1]. Among the given options, Drumstick (Moringa oleifera) is a classic example of a plant with winged seeds. The seeds are typically circular or triangular and possess three distinct papery wings that facilitate their dispersal by wind [t2][t5]. In contrast, Castor (Ricinus communis) seeds are smooth and oily, often dispersed by gravity or ants [c3][t5]. Cocklebur (Xanthium) seeds are enclosed in a burr with hooked spines for dispersal by clinging to animal fur. Garden balsam (Impatiens balsamina) utilizes an explosive dehiscence mechanism where the seed pod bursts to expel seeds [c1][t4]. Therefore, Drumstick is the correct answer.

Sources

  1. [1] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 2: PLANT AND ANIMAL KINGDOMS > Dispersal of plants in Migration > p. 6
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
25%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

5 Cross-Linked PYQs

UPSC repeats concepts across years. Login to see how this question connects to 5 others.

Login with Google