0
Composition of Cell Wall:
The major Carbohydrates making up the primary (budding) plant cell wall are cellulose, hemicellulose and pectin. The cellulose microfibrils are linked through hemicellulosic chains to form the cellulose-hemicellulose web, which is fixed in the pectin matrix. The most common hemicellulose in the primary cell wall is xyloglucan. In grass cell walls, xyloglucan and pectin are sometimes partially replaced by glucuronarabinoxylan.The outer part of the primary cell wall of the plant epidermis is usually impregnated with cutin and wax, forming a permeability barrier known as the plant cuticle.
Secondary cell walls contain a wide range of other compounds that modify their mechanical properties and permeability. The major polymers that make up wood (largely secondary cell walls) include cellulose (35 to 50%), xylan (20 to 35%) and lignin (10 to 25%). The walls of cork cells in the bark of trees are impregnated with suberin, and suberin also forms the permeability barrier in primary roots known as the Casparian strip. Secondary walls - especially in grasses - may also contain microscopic silica crystals, which may strengthen the wall. These silica crystals also ensure the survival of plant by saving them from getting grazed by herbivores.
All these compounds working in coordination make the cell wall unbreakable.
Cell Walls in Fungi:
Fungal cell walls are made of chitin, the same material from which exoskeletons of insects are made, it is a polymer of glucosamine.
Cell Walls in Diatoms:
Diatomic cell walls are composed of Silicic Acid which is a compound of silicon, oxygen and hydrogen.
Bacterial Cell Walls:
In Eubacteria, cell walls are of peptidoglycan. In archaeobacteria, A variety of compounds make up cell wall for example Glycoproteins, Psuedopeptidoglycan and Polysaccharides.
Check out the related links to see microscopic structure of Cell Wall.
What else can I help you with?
What part in a plant cell is strong and stiff?
The still part of a plant cell is called Cell Wall. This is the rigid outermost layer of a plant cell. It makes the cell stiff -providing the cell with mechanical support - and giving it protection. It is found just inside the cell wall and is made up of complex lipids (fats) and proteins.
What is a outer supportive structure of a plant cell?
The cell wall is the outer supportive structure of a plant cell. It provides rigidity and support to the cell, helping the plant maintain its shape and structure. The cell wall is made up of cellulose, a complex carbohydrate that gives strength to the cell.
What organelle makes the plant rigid?
The cell wall is the organelle that provides structural support to plant cells and makes them rigid. It is made up of cellulose fibers and helps maintain the shape of the cell, as well as provide protection.
What helps to support the plant cell and help it to maintain its shape?
The thing that helps to support the plant cell and helps it to maintain its shape is called the cell wall. The cell wall is only found on plant cells.
What is the outside protective wall of a plant cell?
I believe that it is the tissue that goes first then the cell wall and then the plant cell membrane.
What is the characteristics of a cell wall?
Cellulose is a strong material that makes up some of the cell wall of a cell. Also cellulose that is found in the cell wall of plant cells are carbohydrates.
What is the difference between plant cell wall and fungi cell wall?
Plant cell wall is mainly made up of cellulose,hemicellulose,pectines.Fungal cell wall is made up of chitin
How is cell wall like a brick wall?
A plant cell is like a brick in that its shape is rigid. A plant cell has a cell membrane like an animal cell, but it also has a cell wall, which an animal cell does not. The cell wall is made of a tough, rigid substance - chitin. The rigid and durable properties of chitin are what makes grass stick up and spring back up after you've stepped on it.
What part in a plant cell is strong and stiff?
The still part of a plant cell is called Cell Wall. This is the rigid outermost layer of a plant cell. It makes the cell stiff -providing the cell with mechanical support - and giving it protection. It is found just inside the cell wall and is made up of complex lipids (fats) and proteins.
What organelle provides the energy for the cell wall?
Plant cells have mitochondria just as animals cells do. These provide the energy for the production of cell walls.Cellulose is the substance that makes up most of a plant's cell walls. Plant cells make their own carbohydrates that they use for energy and to build their cell wall.
What is a nonliving material that makes up the cells wall of plant cells?
Cell walls are composed of cellulose.
What is a outer supportive structure of a plant cell?
The cell wall is the outer supportive structure of a plant cell. It provides rigidity and support to the cell, helping the plant maintain its shape and structure. The cell wall is made up of cellulose, a complex carbohydrate that gives strength to the cell.
What two things do a plant need to grow?
The cell wall (and cellulose that makes up most of the cell wall).
What organelle makes the plant rigid?
The cell wall is the organelle that provides structural support to plant cells and makes them rigid. It is made up of cellulose fibers and helps maintain the shape of the cell, as well as provide protection.
What helps to support the plant cell and help it to maintain its shape?
The thing that helps to support the plant cell and helps it to maintain its shape is called the cell wall. The cell wall is only found on plant cells.
Why do plant cells have cell walls but animal cells dont?
Well, a cell wall gives the plant cell it's straight structure, which makes the plant stand up and animals can support there own weight and plants need protection that gives the cell wall and animals dont need that protection.
What is cellulose and what is its function?
Cellulose makes up the majority of a plant cell's wall. It is very important as an organic compound and makes up the primary link in the food chain.
