Plant ECM is primarily composed of proteins, whereas animal ECM is primarily composed of carbohydrates. Plant ECM is primarily composed of carbohydrates, whereas animal ECM is primarily composed of protein.
The main molecules that make up the animal extracellular matrix are: Structural proteins such as collagen and elastin, glycosaminoglycans, proteoglycans and glycoproteins. In plants, the cell wall is composed of carbohydrates (mainly cellulose) and glycoproteins. Both plants and animals have ECM . The cell wall of plant cells is a type of extracellular matrix. In animals, the ECM can surround cells either as fibrils that contact all sides of the cell or as a layer on which cells "sit" called the basement membrane. Animal fibers are made up of proteins. Plant fibers are composed of polysaccharides.
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