Clinical Microbiology Hardest Exam! Quiz
Are you ready for this Clinical Microbiology most challenging exam quiz? There are many bacteria, parasites, and viruses that attack the body in a person’s life. A microbiologist is responsible for taking samples from a patient and examining them to know the root cause of illness and come up with a diagnosis as to what one is ailing from and how to treat it. This quiz will test your understanding of some microbiology facts and act as a refresher to know what to read on.
- 1.Staphylococcus is...
- A.
Facultatively aerobic
- B.
Facultatively anaerobic
- C.
Obligate aerobe
- D.
Obligate anaerobe
- 2.Name one Invasin used by Vibrio Cholerae and Shigella dysenteriae
- A.
Neuraminidase
- B.
Hyaluronidase
- C.
Collagenase
- D.
Option 4
- 3.All of the following are Invasins used by Clostridium perfringens EXCEPT
- A.
Collagenase that breaks down the framework of muscles, which facilitates gas gangrene
- B.
Streptokinase that convrt plasminogen to plasmin
- C.
Phospholipases that hydrolyze phospholipids in cell membranes by removal of polar head groups
- D.
Hyaluronidase that attacks the interstitial cement of connective tissue by depolymerizing hyaluronic acid
- 4.Where is Staphylococcus epidermidis found?
- A.
Skin
- B.
Conjunctiva
- C.
Ear
- D.
Nasopharynx
- E.
Oropharynx
- F.
Small intestine
- G.
Colon
- H.
Distal urethra
- I.
Vagina
- 5.Where is Bacteroides found?
- A.
Skin
- B.
Conjunctiva
- C.
Ear
- D.
Nasopharynx
- E.
Oropharynx
- F.
Small intestine
- G.
Colon
- H.
Distal Urethra
- I.
Vagina
- 6.Where is Staph aureus found?
- A.
Skin
- B.
Conjunctiva
- C.
Outer ear
- D.
Nasopharynx
- E.
Oropharynx
- F.
Small intestine
- G.
Large intestine
- H.
Distal urethra
- I.
Vagina
- 7.Where is Lactobacillus usually found?
- A.
Skin
- B.
Conjunctiva
- C.
Ear
- D.
Nasopharynx
- E.
Oropharynx
- F.
Small intestine
- G.
Colon
- H.
Distal urethra
- I.
Vagina
- 8.Where does Pseudomonas normally cause infection?
- A.
Skin
- B.
Conjunctiva
- C.
Outer ear
- D.
Nasopharynx
- E.
Oropharynx
- F.
Small intestine
- G.
Colon
- H.
Distal urethra
- I.
Vagina
- 9.Where does Streptococcus pneumonia normally cause infection?
- A.
Skin
- B.
Conjunctiva
- C.
Outer ear
- D.
Nasopharynx
- E.
Oropharynx
- F.
Small intestine
- G.
Large intestine
- H.
Distal urethra
- I.
Vagina
- 10.Which requires anaerobic coverage in the colon?
- A.
Bacteroides
- B.
Clostridium
- C.
Fusobacterium
- D.
Peptostreptococcus
- E.
Corynebacterium
- F.
Pseudomonas
- G.
Enterobacteriacae
- 11.Which requires anaerobic coverage in the small intestine?
- A.
Lactobacillus
- B.
Fusobacterium
- C.
Peptostreptococcus
- D.
Clostridium
- E.
E. Coli
- F.
Bacteroides
- G.
Enterococcus
- 12.Which requires Anaerobic coverage in the oropharynx?
- A.
Eikenella corrodens
- B.
Peptostreptococcus
- C.
Moraxella Catarrhalis
- D.
Fusobacterium
- E.
Bacteroides
- F.
Actinomyces
- G.
Viridans Strep
- 13.What is a common cause of infection in the nasopharynx?
- A.
Staph aureus
- B.
Strep pneumonia
- C.
Staph epidermidis
- D.
Haemophilus
- E.
Niesseria
- 14.What commonly cause infection in the small intestine?
- A.
Bacteroides
- B.
Enterococcus
- C.
Fusobacterium
- D.
Peptostreptococcus
- E.
Candidia
- F.
Clostridium
- G.
Enterobacteriacae
- 15.What are the common causes of infection in the oropharynx?
- A.
Moraxella catarrhalis
- B.
Viridans strep
- C.
Actinomyces
- D.
Neisseria
- E.
Staph aureus
- F.
Strep Pyogenes
- G.
Strep pneumoniae
- H.
Haemophilus influenz
- I.
Bacteroides
- 16.Which commonly cause infection in the colon?
- A.
Bacterioides
- B.
Clostridium
- C.
Enterobacteriaceae
- D.
Enterococcus
- E.
Fusobacterium
- F.
Peptostreptococcus
- G.
Lactobacillus
- H.
Corynebacterium
- I.
Mycobacterium
- J.
Candidia
- 17.What commonly causes infection in the distal urethra?
- A.
Gardnerella vaginalis
- B.
Enterobacteriaceae
- C.
Enterococcus
- D.
Mycoplasma
- E.
Ureaplasma
- F.
Candidia
- G.
Bacterioides
- H.
Neisseria
- 18.Where is Corynebacterium found?
- A.
Skin
- B.
Conjunctiva
- C.
Ear
- D.
Nasopharynx
- E.
Oropharynx
- F.
Small intestine
- G.
Colon
- H.
Distal Urethra
- I.
Vagina
- 19.Which of the following cause premature dissociation of peptidyl-tRNA from the ribosome?
- A.
Glycylcyclines
- B.
Macrolides
- C.
Mupirocin
- D.
Rifampin
- E.
Chloramphenicol
- F.
Clindamycin
- G.
Streptogramins
- H.
Linezolid
- I.
Ketolides
- J.
Aminoglycosides
- K.
Tetracyclines
- 20.How does Mupirocin function?
- A.
Binds to 23s rRNA of 50s Subunit, inhibiting the formation of ribosome mRNA complex
- B.
Blocks ribosomal exit tunnel, terminating peptide synthesis
- C.
Inhibits isoleucine synthetase, preventing it from binding to tRNA to be incorporated into the peptie chairn
- D.
Irreversibly binds 50s subunit, inhibiting peptidyl transferase
- E.
Binds to 30s subunit and inhibits binding of aminoacyl-tRNA to the A site, interrupting elongation of protein synthesis
- 21.How does Linezolid function?
- A.
Binds to 30s subunit and inhibits binding of aminoacyl-tRNA to the A site
- B.
Binds to 30s subunit and inhibits binding of aminoacyl-tRNA to the A site, interrupting elongation of protein synthesis
- C.
Reversibly binds the 23s rRNA of the 50s subunit, inhibiting the formation of the ribosome-mRNA complex
- D.
Reversibly binds the 50s subunit inhibiting translocatio of tRNA from A site to P site
- 22.How do Macrolides function?
- A.
Binds to 30s subunit and inhibits binding of aminoacyl-tRNA to the A site, interrupting elongation of protein synthesis
- B.
Reversibly bind the 50s subunit, preventing peptidyl transferase activity, inhibiting the translocation of tRNA from A site to P site
- C.
Prevents peptide bond formation during elongation
- D.
Binds to RNA Polymerase inhibiting the initiation of trasncription
- 23.How do Clindamycin and other Lincosamides function?
- A.
Binds to 30s subunit and inhibits binding of aminoacyl-tRNA to the A site, interrupting elongation of protein synthesis
- B.
Irreversibly binds the 50s subunit preventing peptide bond formation during elongation
- C.
Reversibly bind the 50s subunit, inhibiting translocation of tRNA from A site to P site, causing premature dissociation of the peptidyl-tRNA from the ribosome
- D.
Energy dependent, sometimes irreversible finding to the 30s subunit, disrupting the formation of ribosome-mRNA complex. causing errors in translation, and blocks translocation
- 24.How do Streptogramins work?
- A.
Irreversibly bind to the 50s subunit . Group A prevents peptide bond formation during elongation. Group B causes premature dissociation of peptidyl-tRNA from the ribosome
- B.
Binds to 30s subunit and inhibits binding of aminoacyl-tRNA to the A site, interrupting elongation of protein synthesis
- C.
Binds to 30s, sometimes irreversibly, disrupting the formation of ribosome-mRNA complex, causes errors in translation, and blocks translocation
- D.
Reversibly binds to the 23s rRNA of the 50s subunit, inhibiting the formation of the ribosome-mRNA complex
- 25.How do Ketolides function?
- A.
Blocks the ribosomal exit tunnel, thus terminating peptide synthesis
- B.
Binds to 30s subunit and inhibits binding of aminoacyl-tRNA to the A site, interrupting elongation of protein synthesis
- C.
Reversibly binds to the 23s rRNA of the 50s subunit, inhibiting the formation of the ribosome-mRNA complex
- D.
Binds to the 50s subunit, inhibiting translocation of tRNA from A site to P site, causing premature dissociation of peptidyl-tRNA from the ribosome
Questions: 45 | Attempts: 23246 | Last updated: Aug 20, 2020
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