Question

Vascular cambium of stem is
A) Partly primary and partly secondary meristem
B) Primary meristem
C) Secondary meristem
D) Intercalary meristem

Answer 1

Hint: Meristem are those cells which have the power of ability to divide. There are two types of meristems i.e. primary and secondary meristem. Primary meristems are responsible for primary body formation. Whereas secondary meristem are responsible for secondary growth in the plant.

Complete answer:
Vascular bundles are defined as the conducting strands present in the plants. Vascular bundles consist of xylem and phloem. Xylem is responsible for transport of water and solutes from one part to another part of the plant. Phloem is responsible for translocation of food from the one region to another region in a plant.
Meristem are those cells which are found in the specialized region in plant parts. These cells are actively dividing cells. There are two types of meristem on the basis of their time of development:
Primary meristem: These meristem are found in the early life of plants. These meristem are responsible for formation of the primary body. Examples: Apical and intercalary meristem.
Secondary meristem: These meristem are found in mature regions of sh0ot and root in which secondary growth is found. These are also known as lateral meristems. Examples: Fascicular vascular cambium interfascicular vascular cambium and cork cambium.
Vascular cambium divides the xylem to the inner side whereas phloem to the outer side. As vascular cambium is the example of secondary meristem.

So, the right answer is “Option C”.

Note: Vascular bundles are the conducting strand because they are responsible for conducting the substances across the plant tissue. Vascular cambium is responsible for secondary growth in root as well as in stem. They are made up of meristematic cells which have the ability to divide.