Question

Which of the following statements is/are true with respect to plant growth?

• A. 1 only
• B. 1 and 2
• C. 3 only
• D. 1 and 3

Answer 1

The correct option is D 1 and 3

Growth can be defined as a permanent or irreversible increase in dry weight, size, mass or volume of a cell, organ or organism.

After fertilization, the zygote divides multiple times to form the embryo and the embryo gives rise to plant parts like root, stem and leaves. Hence root and stem are the descendents of a single zygotic cell.
The kind of growth that continues as long as the plant lives is called indeterminate growth and is observed at the root and shoot apices. Leaves and fruits exhibit determinate growth, means the growth stops after a certain point. This is due to the consumption of the intercalary meristem for organ formation. This kind of meristem is called the determinate meristem.
Plant development is the overall process observed from birth to death of the plants and is consituted by growth and differentiation. Plant growth involves cell division and enlargement phases and differentiation involves formation of specialized cells for performing specific functions.