Question

In the primary tissues of the stem, the cambium separating xylem and phloem is called as

• A. Procambium
• B. Intrafascicular cambium
• C. Cork cambium
• D. Interfascicular cambium

Answer 1

Answer: (B)

The cambium present within the vascular bundle is called intrafascicular cambium. It is present between the primary xylem and primary phloem. It is primary in origin.

Procambium is the primary meristem of a plant that forms the cambium and primary vascular tissues.

Cork cambium is the tissue found in many vascular plants as part of the periderm. It is found in the stem and gives rise to cork on its outer surface and a layer of cells containing chlorophyll on its outer.

The new strip of cambium which is formed from the permanent cells of interfascicular parenchyma is called the interfascicular cambium. It is secondary in origin as it is derived from the permanent cells of medullary rays. So, the correct answer is option B.