Microbial Ecology — MCQs

Which enzyme in the Krebs cycle is indirectly affected by hyperammonemia due to its impact on metabolic pathways?

Which bacterial species is commonly found on the skin?

A study of nosocomial infections involving urinary catheters is performed. The study shows that the longer an indwelling urinary catheter remains, the higher the rate of symptomatic urinary tract infections (UTIs). Most of these infections are bacterial. Which of the following properties of these bacteria increase the risk for nosocomial UTIs?

Which of the following is more frequently associated with Klebsiella pneumoniae than with Pseudomonas aeruginosa?

Which organisms are commonly isolated from the oral cavity?

Which of the following organisms is considered the classic example of polysaccharide capsular resistance to phagocytosis?

All of the following organisms are known to survive intracellularly except

What does presumptive count include?

Which test is used to detect coliform count?

Which test is used for the confirmatory identification of coliforms?