Question

Secondary xylem is also known as

• A. bark
• B. wood
• C. cambium
• D. Both a and b

Answer 1

The correct option is B wood

The secondary growth in the dicot stem gives rise to the bark on the external and wood on the internal. The wood is formed by the secondary xylem.

Bark is a non-technical term that refers to all tissues exterior to the vascular cambium, therefore including secondary phloem. Bark refers to a number of tissue types (periderm and secondary phloem).

Cambium is an example of secondary meristems and is responsible for the secondary growth in dicot plants.