Question

6. Describe the germination in a seed with the help of an example. ​

Answer 1

Required Answer:

☑Seed germination may be defined as the fundamental process by which different plant species grow from a single seed into a plant. This process influences both crop yield and quality.

☑During the beginning stage of germination, the seeds take up water rapidly and this results in swelling and softening of the seed coat at an optimum temperature. This stage is referred to as Imbibition.

☑It starts the growth process by activation of enzymes. The seed activates its internal physiology and starts to respire and produce proteins and metabolizes the stored food.

☑This is a lag phase of seed germination.By rupturing of the seed coat, radicle emerges to form a primary root. The seed starts absorbing underground water. After the emerging of the radicle and the plumule, shoot starts growing upwards.

☑In the final stage of seed germination, the cell of the seeds become metabolically active, elongates and divides to give rise to the seedling.

Answer 2

ANSWER:

Germination is the beginning of growth of a seed.

The seed requires warmth and moisture to germinate.

First, the seed leaves absorb moisture which allows the food reserves to become available to the new plant.

It then produces a radicle which is called as the first root, so that it can absorb water, followed by a shoot which develops from the plumule, which will allow it to absorb light as the plant needs both water and light to grow.