Parts and it's functions of an internal leaf structure

Answer 1

1. Cuticle: The cuticle is a waxy layer on the outer surface of the leaf that helps reduce water loss by sealing the leaf and preventing excessive evaporation.

2. Epidermis: The epidermis is the outermost layer of cells in the leaf and serves as a protective barrier against physical damage and pathogens.

3. Stomata: Stomata are small pores in the epidermis that allow for gas exchange, including the intake of carbon dioxide for photosynthesis and the release of oxygen and water vapor.

4. Mesophyll: The mesophyll is the middle layer of cells in the leaf and contains the chloroplasts where photosynthesis takes place. It is made up of the palisade layer and spongy mesophyll layer.

5. Palisade layer: The palisade layer is composed of tightly packed, vertically oriented cells that are responsible for capturing sunlight and carrying out the majority of photosynthesis.

6. Spongy mesophyll layer: The spongy mesophyll layer contains loosely packed cells with air spaces that allow for the diffusion of gases throughout the leaf.

7. Veins: Veins are vascular bundles in the leaf that transport water, nutrients, and sugars to and from the rest of the plant. They also provide structural support for the leaf.

8. Xylem: Xylem tissue within the veins transports water and minerals from the roots to the rest of the plant, providing the leaf with resources for photosynthesis.

9. Phloem: Phloem tissue within the veins transports sugars produced during photosynthesis from the leaf to other parts of the plant for energy storage or growth.