Question

Изучите строение листа злаковых.Расмотрите основания листа -- влагалище.Какое оно имеет значения ​

Answer 1

Відповідь:

После изучения строения листа злаковых растений, мы можем сказать:

1) Влагалище- выполняет защитную функцию. Защищает нежные делящиеся клетки.

2) Язычок- не даёт воде проникнуть в месте перехода пластинки листа во влагалище. Также защитная функция.

3) Завязь- выполняет функцию камеры. Хранит семязачатки от высыхания, колебания температуры, поедания насекомыми.

4) Лодикула- способствует раскрытию цветка.

5) Нижняя цветковая чешуя- в нём располагаются злаки.

Пояснення:

                  __   __

                 \     \/    /

                   \_    _/

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Answer 2

Structure of Grass Leaves

The structure of grass leaves is characterized by several key components, including the blade, sheath, and ligule. The blade is the flat, often elongated part of the leaf, while the sheath is the lower part of the leaf that wraps around the stem. The ligule is a small, thin, membranous outgrowth where the leaf joins the sheath. These components play important roles in the overall function of the grass leaf.

The Base of the Leaf - the Sheath

The base of the grass leaf, known as the sheath, serves several important functions. It provides protection for the stem and helps support the leaf blade. Additionally, the sheath plays a crucial role in the uptake of water and nutrients from the soil, as it connects the leaf to the stem, allowing for the transfer of these essential resources.

The sheath also aids in the process of photosynthesis, as it helps to position the leaf blade for optimal light absorption. Furthermore, the sheath acts as a storage area for carbohydrates and other compounds, which can be utilized by the plant as needed.

In summary, the sheath of the grass leaf is significant for: - Providing protection and support for the stem - Facilitating the uptake of water and nutrients - Assisting in the process of photosynthesis - Serving as a storage area for essential compounds

Overall, the sheath of the grass leaf plays a crucial role in supporting the overall health and function of the plant.

Would you like to explore any other aspects of plant anatomy or related topics?