Question

The part such as the root, stem and the leaves are known as the vegetative parts. Why are they called so?

Answer 1

Plants reproduce both asexually as well as sexually. The asexual mode of reproduction uses the somatic parts of the plant. The sexual mode of reproduction is the type in which the germ cells or the sex cells fuse and give rise to the young plant.

Complete answer:
To solve the question, we must be well aware of the vegetative mode of reproduction.
Vegetative reproduction is a type of asexual reproduction. It is that type of reproduction wherein new plants are produced from the vegetative parts. These parts are also known as the somatic parts. These somatic parts get detached from the parent plant and develop into a young one if suitable environmental conditions are given to them.
The plant part is known as vegetative propagule. These parts carry buds. These buds are present on the node. When the propagules containing these buds are buried in the soil, the roots sprout and give rise to young plants.
There are two types of vegetative reproduction:
1. Natural mode of reproduction
2. Artificial mode of reproduction also known as the horticultural mode of reproduction.

Natural mode of reproduction
The roots and the stem and leaves are known as the vegetative parts because these are generally not involved in the reproduction. These do not contain any germ cells but still are capable of giving rise to young plants. Hence they are known as the vegetative parts.

Note:
Here it must be noted that the vegetative stems which give rise to the young ones are the tubers which are found in potato plants, rhizomes found in ginger and bulbs found in onions.
The leaves of bryophyllum are capable of giving rise to young plants. Further the roots of Dahlia can also give rise to new plants.