Question

2. Describe the different parts of a seed.​

Answer 1

Answer:

The three primary parts of a seed are the embryo, endosperm, and seed coat. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food, consisting primarily of starches.

Answer 2

Answer:The three primary parts of a seed are the embryo,

endosperm, and seed coat

Explanation:                                                                                                                                    #A seed coat protects the internal parts of a seed. The seed coat has two layers. The outer layer is thick and known as the testa. The inner layer is thin and known as tegmen.                                                                                                            #The endosperm contains the nutrients stored in it. It provides nutrients to the seed in the form of starch, carbohydrates and proteins to support the embryo during germination. It is located below the seed coat. The seeds remain viable with the intake of nutrients until germination.                                                                                                          #The embryo is the most important part of a seed. It is diploid, developed from the fertilized egg.An embryo comprises the following parts:

1. Epicotyl                                                                                                    2.Hypocotyl

      3.Radicle

      4.Cotyledons

*Epicotyl is a small shoot which gives rise to the entire plant shoot system.

*The primary root emerges first during germination. It is also known as hypocotyl. It anchors the plant firmly in the soil.

*Radicle is a small embryonic root.

*The cotyledons provide nourishment to different parts of the embryo. It emerges as a tiny or fleshy leaf from the soil with the seedling during growth. It stores food in the form of starch and protein.