JAMB Biology 2011 Objective — Question 11

Question 11 of 60 from the Joint Admissions and Matriculation Board (JAMB) Biology 2011 Objective paper, with the correct answer and a full explanation.

Secondary growth is brought about by the activities of the

A. A. phellogen and phelloderm
B. B. phellogen and procambium
C. C. vascular cambium and phelloderm
D. D. vascular cambium and phellogenCorrect

Explanation

In gymnosperms and most dicots, secondary growth (increase in diameter) results from activity of the vascular cambium and cork cambium (phellogen).

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