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The spongy layer of a leaf, which lies beneath the palisade layer, consists of cells that are irregular in shape and loosely packed. Their main function seems to be the temporary storage of the sugars and amino acids that were synthesized in the palisade layer. The spongy layer also aids in the exchange of gases between the leaf and the environment.
What else can I help you with?
What is the biology term for the middle layer of the leaf?
There are 4 layers to the typical leaf; the upper epidermis, palisade layer, spongy layer and lower epidermis. ref http://users.rcn.com/jkimball.ma.ultranet/Biology/Pages/L/Leaf.html
What is spongy mesophyll layer?
Spongy mesophyll cells are not packed so tightly together, which allows carbon dioxide and oxygen to reach the palisade cells where they are needed in photosynthesis. Spongy mesophyll cells and guard cells (see below) also get some photosynthetic action.
How many tissues does a leaf have?
A leaf typically has three main types of tissues: epidermal tissue, mesophyll tissue, and vascular tissue. The epidermal tissue covers the outer surface of the leaf, the mesophyll tissue is where photosynthesis occurs, and the vascular tissue is responsible for transporting nutrients and water throughout the leaf.
Why are cells of the spongy layer packed so loosely together?
All plant cells respire all of the time and need to exchange gases. The main gas exchange surface in plants are the spongy mesophyll cells in the leaves. Leaves have a huge surface area, and the irregular-shaped, loosely-packed spongy cells increase the area for gas exchange even more.
What are the 5 tissues of a leaf?
The five main tissues of a leaf are the epidermis, mesophyll, vascular tissue, parenchyma, and sclerenchyma. The epidermis serves as a protective outer layer, while the mesophyll, which includes palisade and spongy layers, is where photosynthesis primarily occurs. Vascular tissue, consisting of xylem and phloem, transports water, nutrients, and sugars. Parenchyma provides support and storage, while sclerenchyma offers additional structural support to the leaf.
What is the biology term for the middle layer of the leaf?
There are 4 layers to the typical leaf; the upper epidermis, palisade layer, spongy layer and lower epidermis. ref http://users.rcn.com/jkimball.ma.ultranet/Biology/Pages/L/Leaf.html
What are the parts of the elodea leaf and what are the functions of the parts?
The main parts of an Elodea leaf are the cuticle (protective outer layer), epidermis (outer layer of cells), palisade layer (primary site of photosynthesis), spongy mesophyll layer (site of gas exchange), and stomata (pores for gas exchange). The cuticle protects the leaf, the epidermis provides structure, the palisade layer helps in photosynthesis, the spongy mesophyll layer aids in gas exchange, and stomata regulate gas exchange.
What is the main part of a leaf?
The blade is said to be the main part of a leaf. Photosynthesis occurs in the blade. The leaf blade is also known as the lamina.
What are types of mesophyll cells?
The two main types of mesophyll cells found in plant leaves are palisade mesophyll cells and spongy mesophyll cells. Palisade mesophyll cells are located in the upper layer of the leaf and are specialized for photosynthesis, while spongy mesophyll cells are found beneath the palisade layer and aid in gas exchange and the storage of nutrients.
What is spongy mesophyll layer?
Spongy mesophyll cells are not packed so tightly together, which allows carbon dioxide and oxygen to reach the palisade cells where they are needed in photosynthesis. Spongy mesophyll cells and guard cells (see below) also get some photosynthetic action.
How does the structure of spongy bone follow its function?
Spongy bone is porous and constructed of loosely connected structures. The spongy bones allows for the development of bone marrow. The main function of bone marrow is to produce blood cells.
How does the structure of SPONGY-BONE follow its function?
Spongy bone is porous and constructed of loosely connected structures. The spongy bones allows for the development of bone marrow. The main function of bone marrow is to produce blood cells.
How the structure of spongy bone follow its function?
Spongy bone is porous and constructed of loosely connected structures. The spongy bones allows for the development of bone marrow. The main function of bone marrow is to produce blood cells.
How many tissues does a leaf have?
A leaf typically has three main types of tissues: epidermal tissue, mesophyll tissue, and vascular tissue. The epidermal tissue covers the outer surface of the leaf, the mesophyll tissue is where photosynthesis occurs, and the vascular tissue is responsible for transporting nutrients and water throughout the leaf.
Is the palisade layer where most photosynthesis in a leaf occur?
Mesophyll tissue forms the bulk of the leaf. It makes up the green tissue of the leaf and consists of thin-walled cells containing chloroplasts (bits that contain the chlorphyll). In most dicot plants, the mesophyll is differentiated into palisade parenchyma and spongy parenchyma. The palisade parenchyma consists of thin-walled cells which are usually cylindrical. These cells contain large numbers of chloroplasts - the organelle used for capturing light and subsequesnt photosysnthesis.The spongy prenchyma, however, contains far fewer chloroplasts, so its main function is not photosynthesis. The spongy parenchyma has an open and net-like structure with large inter-cellular spaces that facilitate gas diffusion. The major function of the spongy parenchyma is the transport of oxygen, carbon-dioxyde and water vapour. It also is involved in the transport of water and the products of photosynthesis, the sugars. The spongy parenchyma is in close connection with the vascular bundles and the palisade parenchyma. When no clear differentiation exists between palisade and spongy parenchyma, the tissue is called mesophyll.Read more: http://wiki.answers.com/Why_is_the_palisade_layer_where_most_photosynthesis_occur#ixzz18UOwDLzu
What Is the dfference between paliside and spongy?
The palisade layer of cells is tightly packed, like a brick wall, and contains the greatest concentration of chloroplasts in the leaf. The spongy mesophyll is loosely packed, containing many air spaces between the cells. The mesophyll contains vascular bundles and fewer chloroplasts than the palisade. Simply put, the palisade's main purpose is photosynthesis, and the spongy's gas exchange.
Main function of a leaf?
Photosynthesis - make food.
