Flowering Plants

Question 1

Results of Reproduction:

Answer 1

Fertilization is only the beginning of a long process that ends with the formation of a seed.

Question 2

Seed and Fruit Development

Answer 2

The sporophyte begins as a zygote, or a 2n cell. The zygote undergoes numerous cell divisions to form an embryo. Nourishment for the embryo comes from a tissue called the endosperm.
As the endospore matures, the outside layers of the ovule harden and form a protective tissue called the seed coat. As the ovule develops into a seed, changes occur in the ovary that lead to the formation of fruit.

Question 3

Seed Germination:

Answer 3

When the embryo in a seed starts to grown, the process is called germination.
The first part of the embryo to appear outside the seed is the radicle. The hypocotyl is the first part of the seed to appear above ground. The cotyledons will provide nourishment for the seedling until photosynthesis begins.