Question

What is a seed? Describe the structure of any one seed.

Hint:

Seeds are essential for plant reproduction and provide nourishment to the embryo during its early growth.

Answer 1

Step 1: Definition of seed.
A seed is the reproductive unit of a plant, typically consisting of an embryo, a supply of nutrients, and a protective coat. It develops from the fertilized ovule and is capable of growing into a new plant under favorable conditions.
Step 2: Structure of a seed.
Consider a bean seed as an example: - Seed coat: The outer protective layer of the seed. - Embryo: Contains the plant's genetic material, consisting of the radicle (develops into the root) and the plumule (develops into the shoot). - Cotyledons: These are the seed leaves that store food for the developing plant. - Endosperm: Provides additional nourishment to the growing embryo (present in some seeds).
Final Answer: \[ \boxed{\text{A seed is a plant reproductive unit. Bean seed structure: Seed coat, Embryo, Cotyledons, Endosperm.}} \]