Question

Q2. Define these:-

1. Seedling
2. Germination

3. Nutrients
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Answer 1

Explanation:

1. a very young plant or tree that has grown from a seed
2. The beginning of growth, as of a seed, spore, or bud. The germination of most seeds and spores occurs in response to warmth and water.
3. a substance that is needed to keep a living thing alive and to help it grow

Answer 2

Answer:

1) A seedling is a young plant sporophyte developing out of a plant embryo from a seed. Seedling development starts with germination of the seed. A typical young seedling consists of three main parts: the radicle (embryonic root), the hypocotyl (embryonic shoot), and the cotyledons (seed leaves).

2) Germination refers to the process by which an organism grows from a seed or a spore. The most common forms of germination include a seed sprouting to form a seedling and the formation of a sporeling from a spore. Thus, germination occurs primarily in plant and fungal species.

3) Nutrients are compounds in foods essential to life and health, providing us with energy, the building blocks for repair and growth and substances necessary to regulate chemical processes. There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water.