Question

The youngest secondary phloem in a dicot stem is

• A. inside the primary phloem
• B. just outside the xylem
• C. just outside vascular cambium
• D. inside vascular cambium

Answer 1

The correct option is C

just outside vascular cambium

The cambium cells are present between the phloem and the xylem. The cambium cells push the remaining tissue both inwards and outwards. The cells that are pushed towards periphery become the secondary phloem. Thus you get to see youngest secondary phloem just outside the vascular cambium.