Multiple choice

Youngest layer of secondary xylem is nearest to:

  1. pith

  2. cambium

  3. pericycle

  4. cortex

  5. none of these

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

The youngest layer of secondary xylem is the nearest to cambium. It is a cellular plant tissue from which phloem, xylem or cork grows by division, resulting (in woody plants) in secondary thickening.