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JAMB Biology 2004 Question 11

Question 11

Structure of Flowering Plants

In the internal structure of plants, a wide pith in the centre is common to

  1. A.dicot stems and monocot stems
  2. B.dicot stems and monocot roots
  3. C.dicot roots and monocot roots
  4. D.dicot roots and monocot stems
Show the answer and explanation

Answer: B (dicot stems and monocot roots)

Explanation

Dicot stems have a ring of bundles around a central pith, and monocot roots have a ring of xylem and phloem around a large pith. Dicot roots have xylem in the centre and monocot stems have scattered bundles.