Which layer is found directly underneath the palisade layer?
They contain chloroplasts and carry out most of the photosynthesis. Vascular bundles are made up of xylem and phloem cells. These are the cells that carry water and nutrients throughout the plant and are visible as the veins in leaves. The spongy mesophyll layer is located directly below the palisade mesophyll layer.
What are the layers of a leaf called?
The tissues of the leaf in between the epidermal cells, into which gases diffuse from the stomata, are called mesophyll. The mesophyll can be further broken down into two layers, the palisade layer and the spongy layer, both of which are packed with chloroplasts, the factories of photosynthesis.
What does the palisade layer do?
The palisade layer is therefore mainly responsible for producing food and oxygen for the plant through photosynthesis. Let’s go back to our leaf diagram and add in the palisade layer. Remember that it is right below the upper epidermis and contains cells that are cylindrical.
What are the 4 layers of a leaf?
The four layers of a typical dicot leaf are:
- Spongy layer.
- Palisade layer.
- Upper epidermis.
- Lower epidermis.
Why are the palisade cells tightly compacted?
Parenchyma cells are packed tightly in the palisade layer because it increases the efficiency of the plant. The more cells that are present, the more light that can be absorbed. Because light absorption is the first step in photosynthesis, absorbing more light means that the plant is able to produce more energy.
What do palisade cells look like?
Palisade cells are plant cells located on the leaves, right below the epidermis and cuticle. In simpler terms, they are known as leaf cells. They are vertically elongated, a different shape from the spongy mesophyll cells beneath them.
What is the main function of palisade mesophyll?
The palisade mesophyll layer is where most of the photosynthesis occurs in the leaf. The palisade cells contain a lot of chloroplasts to help them perform this photosynthesis. The palisade cells are closely packed together to maximize light absorption.