Solution

Vascular cambium cuts off secondary xylem inwards and secondary phloem outwards.

Vascular cambium is partially secondary. It forms secondary xylem towards its inside and secondary phloem towards the outside. 4–10 times more secondary xylem is produced than secondary phloem.

Concept vascular-cambium-secondary-growth

Secondary growth - vascular cambium in past papers

3 questions from this chapter have appeared across 3 exam years.