Multiple choice

The chief water conducting elements of ferns and gymnosperms are

  1. vessels

  2. fibres

  3. tracheids

  4. sieve elements

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ferns and gymnosperms lack vessels (evolved in angiosperms) and rely on tracheids as their chief water-conducting elements. Tracheids are long, thin cells with tapered ends that transport water and provide structural support. Sieve elements are for food transport.