Rank the following microbes in terms of their resistance to disinfectants: Gram-positive bacteria, Gram-negative bacteria, mycobacteria, bacterial endospores, vegetative protozoa, protozoan cysts, fungi, non-enveloped viruses, enveloped viruses

Which of the following pathogens is the LEAST virulent?   1. Microbe B, ID50 =  1,000 cells 2. Microbe D, ID50 =  10 cells 3. None of the other four answers (Cannot be determined from information provided) 4. Microbe C, ID50 =  100 cells  5. Microbe A, ID50 =  100,000 cells

Complete the sentences with the matching vocabulary term Terms: -lytic -gram negative -aerotolerant anaerobe -ether -facultative aerobe -enveloped virus -prion -peptidoglycan -pseudopeptidoglycan -chemo heterotroph -obligate intracellular parasite -facultative anaerobe -lysogenic • A ______ bacterium will have a thin cell wall covered with an internal membrane. • A pathogen that cannot survive outside the host cell is a(n) _____. • An aerobic organism that can switch to anaerobic respiration when necessary is known as a(n) ______. • The bacterial cell wall is made of ______. • A phage that kills the host cell after one round of viral replication is referred to as a _____ phage.

Capsules are virulence factors (responsible for pathogenicity). Name two bacteria that are capsulated and pathogenic.