What is cross section in leaf?
The cross section of a leaf is divided into three main parts namely, the epidermis, mesophyll and the veins. Epidermis is divided into two types – upper epidermis and lower epidermis. Mesophyll is the inner tissue (parenchyma) of a leaf, containing many chloroplasts.
What are the sections of a leaf?
Leaves have two main parts: The leaf blade and the Stalk or the petiole.
- The leaf blade: It is also called the lamina. It’s generally broad and flat.
- The petiole: It is the stalk-like structure which connects the leaf blade to the stem. The petiole has tiny tubes, that connect the veins on the leaf blade to the stem.
What are the layers of cross section leaf?
Cuticle: The thin waxy layer that can control or prevent any loss of water from the leaf is called cuticle. Epidermis: The outermost later of the leaf which is present both on the upper and lower surface of the leaves is called epidermis.
What are the 4 layers of a leaf?
What Are The 4 Layers Of A Leaf?
- Spongy layer.
- Palisade layer.
- Upper epidermis.
- Lower epidermis.
What is the basic structure of a leaf?
Typically, a leaf consists of a broad expanded blade (the lamina), attached to the plant stem by a stalklike petiole. In angiosperms leaves commonly have a pair of structures known as stipules, which are located on each side of the leaf base and may resemble scales, spines, glands, or leaflike structures.
What are the 10 internal parts of the leaf?
The anatomy or internal structure of dicot leaves can be understood on the basis of the following structures:
- Upper Epidermis.
- Mesophyll. a. Palisade Tissue. b. Spongy Tissue.
- Vascular Tissue.
- Midrib.
- Lower Epidermis.
What is cross-section diagram?
Cross sections are line graphs that show a sideways view of a landscape. They can show features such as hills and valleys, or depths, such as the depth of a river. Cross sections of hills use contour lines to determine the height of the land.
What is the shape of the cross-section?
The cross-section is shaped like a rectangle. It has the same shape and size as the base. Now, we will slice it with a plane perpendicular to the base. Remember, perpendicular lines intersect the base at ninety degrees.
What is a cross section diagram?
In technical drawing a cross-section, being a projection of an object onto a plane that intersects it, is a common tool used to depict the internal arrangement of a 3-dimensional object in two dimensions.
How do you make a leaf cross sectional slide?
Procedure:
- Remove a leaf from the plant and place it flat on the table.
- With the sharp knife or razor blade (and adult supervision), cut the leaf straight down the center.
- Add a few drops of water to the microscope slide and place the thinly sliced leaf section in the water.
- Place the slide under the microscope.
What are the different parts of a leaf explain with diagram?
The different parts of a leaf are as follows: (i) Petiole : The leaf is attached to the stem by means of a short stalk called petiole. (ii) Lamina : The flat green, expanded portion of the leaf is called leaf-blade or lamina. (iii) Leaf base: The end of the lamina joining the petiole is called leaf base.