Beta decay is a consequence of the weak force, which is characterized by relatively lengthy decay times. Nucleons are composed of up or down quarks, and the weak force allows a quark to change type by the exchange of a W boson and the creation of an electron/antineutrino or positron/neutrino pair.
Most procaryotes contain some sort of a polysaccharide layer outside of the cell wall polymer. In a general sense, this layer is called a capsule. A true capsule is a discrete detectable layer of polysaccharides deposited outside the cell wall.
Simply Cell wall of plant is composed of cellulose whlie that of Fungi is composed of Chitin The main carbohydrate that composes plant cell wall is glucose (linked in Î² 1-4 linkages forming cellulose). In Fungi, the main carbohydrate that composes the cell wall is N-acetylglucosamine (linked in Î² 1-4 linkages forming chitin). There are also other differences. Plant cell wall is also composed of Pectins, Hemicellulose, and Lignin (mainly in plants that have trunks). None of these molecules appear in fungi walls.