Table of Contents
What is the protective layer of a leaf?
Just like our skin helps protect us, leaves have an outer layer that protects them. This outermost layer is called the cuticle. It is generally waxy to protect the leaf and prevent water loss.
What is the outer layer of a leaf called What is its function?
The outer surface of the leaf has a thin waxy covering called the cuticle (A), this layer’s primary function is to prevent water loss within the leaf. (Plants that leave entirely within water do not have a cuticle). Directly underneath the cuticle is a layer of cells called the epidermis (B).
What is the outer layer of a plant called?
epidermis
The epidermis is the protective outer layer of clonally related cells covering all plant organs. It is composed of a number of specialised cell types which differentiate from the basal epidermal cell in adaptively significant frequencies and patterns.
What is a leaf outer skin called?
epidermis: their skin. waterproof coating covering the surface of the epidermis. This covering is called the cuticle. The cuticle is usually thicker on the upper surface of the leaf than on the underside.
What is the cuticle of a leaf?
Plant cuticle is the outermost layer of plants, which covers leaves, fruits, flowers, and non-woody stems of higher plants. It protects plants against drought, extreme temperatures, UV radiation, chemical attack, mechanical injuries, and pathogen/pest infection.
What forms the outer protective covering of a plant?
The dermal tissue system—the epidermis—is the outer protective layer of the primary plant body (the roots, stems, leaves, flowers, fruits, and seeds). Cutin and waxes are fatty substances deposited in the walls of epidermal cells, forming a waterproof outer layer called the cuticle.
What is the layer under the top layer of a leaf called?
Structure-Function Relationship: Leaves
| Name of Structure | Structure |
|---|---|
| Cuticle | Layer of suberin |
| Epidermis | Single layer of thin, closely packed cells |
| Guard cells | Spiral walls, bound at ends |
| Palisade cells | Tall, many chloroplasts, precisely spaced |
Which part of the structure protects the leaf?
leaf epidermis
Leaf function The internal structure of the leaf is protected by the leaf epidermis, which is continuous with the stem epidermis.
What are the five layers of a leaf?
Leaves are complex organs consisting of many different cell types (see Figure 1) including the epidermis, palisade mesophyll layer, spongy mesophyll layer, and vascular bundles. Figure 1: Cross-section of a dicot leaf showing its various tissues and anatomy.
What are the layers of a leaf?
16.1. 4: The Leaf
- Layers in a leaf. Upper epidermis. Palisade layer. Spongy layer. Lower epidermis.
- Leaf Veins.