MCB 3020C|207 Microbiology EXAM 1 Correctly Answered|34 Pages
2 advantages to lysogeny for virus - ️️-phage remains viable but may not replicate -multiplicity of infection ensures survival of host cell A bacteria shaped as 4 spheres in a square is known as - ️️tetrads A bacteria shaped as a chain of spheres is known as - ️️Streptococci A bacteria shaped as a cluster of spheres is known as - ️️Staphylococi A bacteria shaped as a cubic formation of 8 spheres is known as - ️️Sarcinae A bacteria shaped as a pair of spheres is known as - ️️Diplococci A bacteria shaped as a sphere is known as - ️️Cocci Acellular Microbes - ️️1. Viruses (nucleic acids and proteins) 2. Viroids (RNA) 3. Virusoids (RNA) 4. Prions (Protein) Active Transport - ️️-energy dependent process -Moves molecule against its concentration gradient -Involves premeases: carrier saturation effect is observed at high solute concentration all prion caused diseases - ️️-have no effective treatment -result in progressive degeneration of the brain and eventual death Amebiasis (Amebic Dysentery) - ️️-Caused by Entamoeba histolytica -infection by ingestion of mature cyst from fecally contaminated water, food, hands, or from fecal exposure during sexual contact
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