which of the following antibiotics are batericidal? a) polymyxin b b) rifamycins c) tetracyclines d) sulfonamides e) erythromycin

GROWTH OF FUSOBACTERIUM ON KANAMYCIN/VANCOMYCIN AGAR (KV) CAN BE DESCRIBED AS a) pigmented b) black c) hemolytic d) inhibited (no growth)

Your patient is allergic to penicillin. Therefore, which of the following antibiotics is NOT appropriate to give this patient? A) Ancef (Cefazolin) B) Vancocin (Vancomycin) C) Bactrim (Sulfamethoxazole/Trimethoprim) D) Zosyn (Piperacillin/Tazobactam)

During gap junction formation, connexons in neighboring cells become tightly connected through extensive noncovalent interactions of __________. a)     connexin subunit intracellular domainsb)     connexin subunit extracellular domainsc)     connexin carbohydratesd)     connexin lipidse)     polynucleotides

20) Biological control of Salmonella is by using: a) E. Coli (ETEC Strain) b) Shigella c) Bdellovibrio d) Plasmodium e) Spirillum 23) Salmonella typhi and Staphylococcus aureus are two species used in: a) Toxin-mediated killing b) Viral mediated lysis c) Predation-mediated killing d) Autoclave effectiveness evaluation e) Phenol Coefficient test 25) The gas that has been used recently used to decontaminate biological safety cabinets is: a) EtO b) Beta-propiolactone c) NO Gas d) N2O Gas e) Vapor-phase H2O2

This petri plate shows the susceptibility of Staphylococcus aureus to different antibiotics. Which antibiotic is least effective?   a)  Methicillin - Meth   b)  Control   c)  All are ineffective   d)  Ampicillin - Amp   e)  Vancomycin - Van

1) Which of the following apply(ies) to Bacillus cereus and Bacillus anthracis? Choose all that apply: a) B. anthracis forms spores while B. cereus does not b) B. cereus is more lethal when it causes an infection c) B. anthracis has extra-chromosomal DNA that makes it more pathogenic d) Despite their similar names, the two are actually not at all related e) The 16S rRNA gene sequences of these bacteria are more than 99% identical, meaning that they are actually members of the same species

which of the folllwing would be considered broad-spectrum? a) penicillin V b) rifamycins c) vancomycin d) penicillin G e) erythromycin

USE NO. 1 PENCIL ONLY IMPORTANT Match the term below with the statement that best describes it: A) Clamydia B) Mycobacterium spp. C) Escherichia coli D) Firmicutes E) Clostridium G) Vibrio spp. I) Spirochetes K) Bacillus F) MRSA H) Rickettsiales J) Mycoplasma L) Cyanobacteria Genus within the Actinobacteria that includes the causal agents of leprosy and tuberculosis and is characterized by the presence of cell walls with mycolic acid. A group of bacteria that undergo oxygenic photosynthesis Genus of Tenericutes bacteria characterized by the absence of a cell wall A member of the Gamma-proteobacteria characterized by short rods which are commonly found in human gut microbiota Genus of Gamma-proteobacteria characterized by curved rods and containing both human pathogens and bioluminescent species An order within the class Alpha-proteobacteria that are often intracellular parasites such as the causative agent of Rocky Mountain spotted fever A genus of rod shaped endospore producing…

48) Sleeping sickness is caused by: a) Unicellular organism b) Eukaryote c) Protozoan d) Parasite e) Zoonotic agent 49) There are no antibiotics for fungus because: a) They are Eukaryote b) Have the same ribosomal mechanism as us c) Most natural antibiotics are made by fungus d) all the above e) a & b only 50) The most common animal virus shape consists of: a) 20 equilateral triangles b) 12 vertices c) icosahedron head and helical tail d) a & b e) none of the above