Question

Where and how the structures like roots, stems, leaves, flowers, fruits arise and that too in an orderly sequence?

Answer 1

1: Growth
Growth is defined as a permanent and an irreversible increase in size of an organ or can be an individual cell as well. It is the fundamental characteristic of all the living organisms.

2: Plant growth
Plants have the capacity of unlimited growth throughout their life. This is due to the presence of meristems (these cells have the capacity to divide and self-perpetuate) in some locations in their body.

3: Roots
The first organ which is formed after the seed germination is the primary root or the radicle. This primary root further grows in downward direction and forms the secondary roots.

4: Stems
Above the radicle lies the embryonic stem or hypocotyl which supports the cotyledon. The stem arises from this part and further grows.

5: Leaves
Leaves arise from the nodes present on the stems.

6: Flower
Flowers arise from the flower buds present on the stem.

7: Fruits
Fruits arise when egg cells (inside the ovule) are fertilised by the male gamete from the pollen.