Question

A leaf primordium grown into adult leaf lamina by final mean of

• A. At first by apical meristem and later largely by marginal meristems
• B. Apical meristem
• C. Lateral meristem
• D. Marfinal meristems

Answer 1

The correct option is A At first by apical meristem and later largely by marginal meristems

Meristems are the tissues that have the capability to divide and form new cells. They are of three main types:

1. Apical meristems are present at the tip of roots or stems and are responsible for the growth of length.
2. Intercalary meristems are present in between the nodes and are responsible for the elongation of organs.
3. Lateral meristems are present at the side of the plant and are responsible for increasing of its breath.

Marginal meristems are present at the side of leaf primordium and are responsible for the shape of and growth of the leaf. They are the part of apical meristems and functions after the formation of leaf primordium by apical meristem.

So, the correct option is 'At first by apical meristem and later largely by marginal meristems'