Quiz on Bacteria and Diseases PDF

1. Crepitation associated with gas gangrene is due to which of the following? (1 Point) a) respiratory distress due to plague. b) nerve contractions due to tetanus. c) a toxin produced by B. anthracis d) lymph node swelling due to plague. e) gas produced by C. perfringens. 2. Clostrid...

1. Crepitation associated with gas gangrene is due to which of the following? (1 Point) a) respiratory distress due to plague. b) nerve contractions due to tetanus. c) a toxin produced by B. anthracis d) lymph node swelling due to plague. e) gas produced by C. perfringens. 2. Clostridium tetani is (1 Point) a) Aerobic / spore forming / bacillus b) Anaerobic / spore forming / bacillus c) Aerobic/nonsporefor\min g/bacillus d) Anaerobic/sporefor\min g/cocci 3. example of zoonotic disease (1 Point) a) Staphylococcus aureus b) Clostridium perfringenes c) Streptococcus pneumonia d) bacillus anthrax 4. Which of the following is bacteria cause tetanus(1 Point) a) bacillus anthrax b) Cl.tetani c) Streptococcus pyogens 5. Rectangular spore forming Gram-positive bacilli arranged in chain )1 Point) a) Streptococci pyogenes b) Neisseria meningitidis c) Staph.saprphyticus d) Bacillus anthracis 6. Tetanospasmin is toxin secreted from (1 Point) a) Cl.tetani b) Cl. Perfrengenes c) Bacillus 7. A specimen from abscess cultured in blood agar, catalase positive. Selec the one possible laboratory results from the options below:(1 Point) a) Gram-positive cocci clustered shaped bacteria may be observed in gram staining b) Gram-positive bacteria in chains may be identified c) Gram positive diplococci d) None of the above 8. Gas gangrene is MOST likely associated with which one of the following? (1 Point) a) Staphylococcus aureus.  b) Clostridium perfringens. c) Streptococcus pneumoniae. d) Neisseria gonorrhoeae. e) Pseudomonas aeruginosa. 9. Which one of the following actions is blocked by tetanus toxin ( (tetanospasmin) when it reaches the spinal cord and brain stem?(1 Point) a) Release of acetylcholine. b) Cleavage of stimulatory proteins. c) Release of inhibitory glycine 10. A 30-year old farmer has hand ulcer for the past 14 day transmitted from his cattle. Which one of the following organisms is suspected as a cause ?(1 Point) a) bacillus anthrax b) Cl.tetani c) Streptococcus pyogens d) Klebsiella 11. Clostridium perfringens infections are associated with which one of the following? (1 Point) a) Contamination of wounds. b) Antibiotic treatment. c) Consumption of water contaminated with sewage 12. one of the following infections is a clinical manifestations caused by N. gonorrhoeae, (1 Point) a) abcess b) Neonatal conjunctivitis c) meningitis d) cellulitis 13. Which of the following route is not the common route for the transfer and spread of N.gonorrhoea? (1 Point) a) Through kissing and hugging b) Sexual intercourse c) Infected mother to fetus d) All of the above 14. All the following are characters of S.epidermidis except:- (1 Point) a) Catalase positive b) Coagulase negative c) Coagulase positive d) Non B-hemolytic on blood agar e) Not ferment mannitol on mannitol salt agar 15. A 30-year-old sexually active male presents to the clinic with complaints of urethral discharge and discomfort during urination for the past week. He reports having a new sexual partner in the last month and has not used protection consistently. On examination, the healthcare provider observes a purulent urethral discharge. The genital examination reveals mild erythema of the urethral meatus. A Gram stain of the urethral discharge is performed, revealing intracellular gram-negative diplococci inside polymorphonuclear leukocytes. Which is the causative microorganism? (1 Point) a) bacillus anthrax b) neisseia gonorrhea c) Streptococcus pyogens d) Klebsiella 16. Which medium is selective for N. gonorrhoeae?(1 Point) a) Bood agar b) Nutrient agar c) Mannitol salt agar d) MTM media 17. Gram-positive cocci which forms bubbles with hydrogen peroxide (1 Point) a) Streptococcus pyogenes. b) Staphylococcus aureus. c) Neisseria meningitides 18. The spore of clostridium tetani is (1 Point) a) Terminal (bulging) b) Wool sorter's disease c) Pulmonary anthrax d) Intestinal anthrax e) Cutaneous anthrax 19. Which one of the following is NOT a virulence factor in Staphylococcus aureus?(1 Point) a) Catalase b) Coagulase. c) Enterotoxins. d) M protein 20. All of the following are toxigenic diseases of S.aureus except:- (1 Point) a) Toxic shock syndrome b) staphylococcal scalded skin syndrome (SSSS) c) Food poisoning d) abscess