Question

Внутреннее строение листа

Answer 1

Кожица
столбчатая ткань
губчатая ткань
кожица, с расположенными на ней устьицем и замыкающими клетками

Answer 2

Internal Structure of a Leaf

The internal structure of a leaf consists of several specialized tissues that perform different functions essential for the plant's survival and growth.

Epidermis and Cuticle: The outermost layer of the leaf is the epidermis, which is covered by a waxy cuticle. The epidermis acts as a protective barrier, while the cuticle helps reduce water loss through evaporation.

Mesophyll Tissue: The mesophyll tissue is located between the upper and lower epidermis and is the main area of photosynthesis. It consists of two types of cells: the palisade mesophyll, which is tightly packed and contains many chloroplasts for photosynthesis, and the spongy mesophyll, which has air spaces for gas exchange.

Vascular Tissues: The leaf contains vascular tissues, including xylem and phloem, which form the leaf veins. Xylem transports water and minerals from the roots to the rest of the plant, while phloem transports sugars produced during photosynthesis to other parts of the plant.

Stomata: Stomata are small openings in the epidermis that allow for gas exchange. They are surrounded by guard cells, which control the opening and closing of the stomata to regulate gas exchange and water loss.

Conclusion: The internal structure of a leaf is highly specialized to facilitate photosynthesis, gas exchange, and the transport of water and nutrients throughout the plant.