Why does seed germination happen?

Answer 1

1. Water enters the seed through a hole in the seed coat called the micropyle.
2. Water moves into the tissues and cells by imbibition and osmosis .
3. The seed swells and the seed coat bursts.
4. Water activates gibberelline, the hormone needed for breaking the dormancy of the seed.
5. Gibberelline activates amylase which hydrolyses starch to maltose, and maltose is then hydrolyzed by maltase into glucose.
6. Glucose is mobilized (transported) to the embryo .
7. The embryo absorbs glucose and uses it for respiration (oxygen is needed in this process).
8. Cell division, growth and elongation occur in the embryo . The radicle starts growing downwards into a root and the plumule starts growing upwards into a shoot.
9. The nutrients needed for growth are all supplied by the food stored in the cotyledons.
10. As the nutrients in the cotyledons are consumed and exhausted, the first leaves start to appear and the plant starts to photosynthesize and make its own food.
11. When photosynthesis starts, the seedling absorbs water and minerals from the soil, carbon dioxide from the atmosphere and sunlight.

Answer 2

Seed germination happens because the plants have to fertilize the seed them selves so usually the polen carries in the wind or something along them lines..

And then them darn plans there re grow and re grow.

Answer 3

The germination of a plant is the forming of a plant's leaves and vegetable/fruit/flower. The basic steps of germination are:

1) The plant's stem is containing in the ground,

2) Slowly the stem begins to grow and reaches above the ground

3) The cotyledons in the leaves of the plant help the leaves grow.

4) The following vegetable/fruit/flower for example a bean is formed in the middle of the leaves. At that particular time, the bean is quite small.

5) The bean grows and the plumule forms out. It rises above from the ground and joins the plant

6) With the help of the cotyledons feeding on photocynthesis the bean grows into a proper bean Plant.

THIS IS THE PRODUCTION OF GERMINATION.

Answer 4

Germination is accomplished by planting a seed. You will have to wait 30 to 90 days for the process to be seen.

Answer 5

they have plant smex