Question

Рисунок строение кожицы листа, биология 6 класс

Answer 1

Пестик тычинка листья

Answer 2

Structure of a Leaf Epidermis

The epidermis is the outermost layer of the leaf and serves as a protective covering. It consists of two main types of cells: the upper epidermis and the lower epidermis. Let's explore the structure of each layer in more detail.

Upper Epidermis: The upper epidermis is the outermost layer of cells on the upper side of the leaf. It is usually transparent and lacks chloroplasts, which allows light to pass through to the underlying cells. The upper epidermis also contains a waxy cuticle, which helps reduce water loss through evaporation.

Lower Epidermis: The lower epidermis is the outermost layer of cells on the lower side of the leaf. It is similar to the upper epidermis in structure but may have specialized structures called stomata. Stomata are small openings that allow for gas exchange, such as the uptake of carbon dioxide and the release of oxygen and water vapor. Each stoma is surrounded by two specialized cells called guard cells, which control the opening and closing of the stomata.

Leaf Epidermis Diagram

Unfortunately, I couldn't find a specific diagram of the leaf epidermis for the 6th grade biology curriculum. However, you can find various diagrams and images of the leaf epidermis by conducting a search using relevant keywords.

Conclusion

In summary, the leaf epidermis consists of the upper epidermis and the lower epidermis. The upper epidermis is transparent and lacks chloroplasts, while the lower epidermis may contain stomata for gas exchange. The epidermis plays a crucial role in protecting the leaf and regulating gas exchange.