barm - a commercial leavening agent containing yeast cells; used to raise the dough in making bread and for fermenting beer or whiskey. yeast. yeast cake - small cake of compressed moist yeast. brewer's yeast - yeast used in fermenting beer. leaven, leavening - a substance used to produce fermentation in dough or a liquid. mother - a stringy slimy substance consisting of yeast cells and bacteria; forms during fermentation and is added to cider or wine to produce vinegar.
No. Being that viruses are not a living organism, they are neither contain cells, nor are they a cell themselves. Viruses are merely few macromolecules (such as nucleic acid and protein) which combines to form a pathogenic particle.dit: a cell wall-as the name implies-is a part of a cell. Viruses are not cells. â¦ Cells are living, viruses are not.
A virus is a no-cellular organism. Some may argue the point of viruses being living or dead, but all concede that cells and viruses share little in structure.Cells are membra â¦ ne bound. If a virus has a membrane it took it fro a cell it erupted from.onfidence votes 45. Virus is considered as a living organism since it doesn't have what we call a well-defined cell. It has a protein coat and genetic material only. It is a matter of controversy whether to classify viruses as living or non-living. They lack all other cell components.