Question

Which one of the following pairs is an example for lateral meristem?

• A. Phellogen and phelloderm
• B. Phellogen and fascicular cambium
• C. Procambium and phelloderm
• D. Interfascicular cambium and phellem

Answer 1

The correct option is B Phellogen and fascicular cambium

These meristems, known as the vascular and cork cambiums, are active in areas of the plant where primary growth has ceased and are therefore referred to as secondary meristems. The lateral meristems encircle the body of the plant. They are distinguished from apical meristems, which form the primary body of the plant, in several ways, but most noticeably in the proximity of the lateral meristem to the tissues that they produce.
Phellogen is defined as the meristematic cell layer responsible for the development of the periderm. Cells that grow inwards from the phellogen are termed phelloderm, and cells that develop outwards are termed phellem or cork.
The layer of cells between the primary xylem and primary phloem, called a fascicular cambium. Each vascular bundle develops a meristematic area of growth.