Question

Vascular cambium and cork cambium are examples of
A. Apical meristem
B. Lateral meristem
C. Intercalary meristem
D. Promeristem

Answer 1

Hint: Vascular cambium is the type of cambium that is related to the conduction of water and nutrients. On the other hand, the cork cambium is the type of cambium that is related to the formation of the wood in the plants.

Complete answer: Lateral meristem is the meristematic tissue that is situated at the peripheral zone of the plant both at the stem and the roots. The lateral meristem is responsible for the increase in the diameter of the plant or the secondary growth. It is of types like vascular cambium, interfascicular cambium, and cork cambium.
-Apical meristem is the meristematic tissue that is situated at the top of the plant, both at the shoot and the root. It is present in the apical and the axillary buds. It is responsible for the longitudinal increase in the length of the plant. The apical meristem helps in primary growth.
-Intercalary meristem is the meristematic tissue that is situated near the nodal regions above or below the roots. This meristem is formed by the intercalation of the apical meristem. It helps in the increase of the length of the internodes.
-Promeristem is the meristematic tissue that causes the formation of the various types of cells in the plant by differentiation. The promeristem differentiates to form the primary meristem.
Thus, based on the above information we can conclude that the vascular cambium and cork cambium are examples of the lateral meristem.
Hence, the correct answer is option (B).

Note: The secondary growth occurs in the stellar and the extra-stellar zone of the dicot stems. In the stellar zone, the cells of the cambium ring produce new cells on both the inside and the outside. On the other hand, in the extra-stellar zone, the cork cambium ring forms new cells on the inner and outer surfaces.