Части зародыша семени растений являются ПОМОГИТЕЕ
Ответы на вопрос
Объяснение:
Зародыш — зачаток будущего растения.
Он состоит из зародышевого корешка, зародышевого стебелька, зародышевой почечки и семядолей. Зародышевый корешок — зачаток нового корня. При прорастании семени он развивается первым, разрывает кожуру семени и закрепляется в почве. Зародышевый стебелёк — зачаток нового стебля.
Parts of a Plant Seed Embryo
The embryo is the young, developing plant contained within a seed. It is composed of several parts that play important roles in the growth and development of the plant. Let's explore these parts in more detail:
1. Cotyledons: Cotyledons, also known as seed leaves, are the first leaves to emerge from the seed upon germination. They provide nutrients to the developing plant until it can produce its own food through photosynthesis. Cotyledons can vary in number depending on the plant species. Some plants have one cotyledon (monocots), while others have two cotyledons (dicots).
2. Plumule: The plumule is the embryonic shoot located above the cotyledons. It develops into the stem and leaves of the plant.
3. Radicle: The radicle is the embryonic root located below the cotyledons. It develops into the root system of the plant, anchoring it in the soil and absorbing water and nutrients.
4. Hypocotyl: The hypocotyl is the region of the embryo between the radicle and the cotyledons. It plays a role in the emergence of the seedling from the soil.
5. Seed Coat: The seed coat, also known as the testa, is the protective outer covering of the seed. It helps to prevent desiccation (drying out) and protects the embryo from mechanical damage and pathogens.
6. Endosperm: In some plant species, the endosperm is a nutrient-rich tissue that surrounds the embryo. It provides a source of energy and nutrients for the developing plant until it can establish its own photosynthetic capabilities.
It's important to note that the specific structure and composition of the seed embryo can vary among different plant species. The parts mentioned above are general features commonly found in plant seeds.
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