Search results
Results From The WOW.Com Content Network
Physarum polycephalum, an acellular [1] slime mold or myxomycete popularly known as "the blob", [2] is a protist with diverse cellular forms and broad geographic distribution. The “acellular” moniker derives from the plasmodial stage of the life cycle : the plasmodium is a bright yellow macroscopic multinucleate coenocyte shaped in a ...
Structural biology is the study of the structural properties of biopolymers. In contrast, most synthetic polymers have much simpler and more random (or stochastic) structures. This fact leads to a molecular mass distribution that is missing in biopolymers.
Polymer nomenclature is generally based upon the type of monomer residues comprising the polymer. A polymer which contains only a single type of repeat unit is known as a homopolymer, while a polymer containing two or more types of repeat units is known as a copolymer. [22] A terpolymer is a copolymer which contains three types of repeat units ...
Close up of mold on a strawberry Penicillium mold growing on a clementine. A mold (US, PH) or mould (UK, CW) is one of the structures that certain fungi can form. The dust-like, colored appearance of molds is due to the formation of spores containing fungal secondary metabolites. The spores are the dispersal units of the fungi.
Mold or mould may also refer to: Artifacts. Molding ... Biology. Molds, species of true fungi forming mold; Leaf mold, a type of compost, in horticulture;
Swedish mycologist Elias Magnus Fries described numerous slime moulds as Myxogasteres in 1829. [5] Species in the class Myxogastria are colloquially known as plasmodial or acellular slime moulds. Some consider the Myxogastria a separate kingdom, with an unsettled phylogeny because of conflicting molecular and developmental data.
Thus, while most microorganisms can assimilate simple monomers, degradation of polymers is specialized, and few organisms can degrade recalcitrant polymers like cellulose and lignin. [16] Each microbial species carries specific combinations of genes for extracellular enzymes and is adapted to degrade specific substrates. [12]
The sequence of events during the injection mould of a plastic part is called the injection moulding cycle. The cycle begins when the mould closes, followed by the injection of the polymer into the mould cavity. Once the cavity is filled, a holding pressure is maintained to compensate for material shrinkage.