RASMUSSEN COLLEGE MCB 2289L MICROBIOLOGY LEARNSMART LAB MODULE 07 QUIZ,WELL EXPLAINED.

Which test utilizes hydrogen peroxide and the observation of gas bubble formation when attempting to identify an unknown bacterium? • Question 2 All of the following are methods that can be used to isolate bacteria from a mixed culture EXCEPT? • Question 3 The field of study in which medicine and microbiology intersect is known as medical microbiology • Question 4 The absence of hemolysis on a blood agar plate is referred to as _______ hemolysis • Question 5 Which of the following bacterial species would be most likely to grow in bile esculin medium and hydrolyze the esculin? • Question 6 Which test uses a medium that is both selective and differential for members of the genus Staphylococcus? • Question 7 How do you determine the species of an unknown bacterium? • Question 8 Gram-positive cocci in chains would be called staphylococci. • Question 9 The complete clearing or hemolysis that a bacterial isolate may produce on blood agar is called alpha hemolysis • Question 10 Identification of a bacterial species cannot be made on microscopic morphology alone because __________. • Question 11 Which of the following is a characteristic of members of the resident microbiota? • Question 12 Impetigo, a type of inflammatory skin infection, is caused by__________ • Question 13 Before attempting to identify an unknown bacterial species, the organism must be isolated in a pure culture • Question 14 A microorganisms that is most often harmless but may occasionally cause infection and disease if defenses are compromised is referred to as an opportunistic pathogen. • Question 15 The _________ test involves using rabbit plasma as a reagent and its results are determined by observation of thickening of the medium. • Question 16 All of the following body sites normally have large numbers of resident microbiota EXCEPT? • Question 17 The Gram stain is an example of a test that can be used to determine the ______ characteristics of a bacterium? • Question 18 A bacterial isolate grown on a mannitol salt agar plate changes the pink agar to yellow and produces bright yellow colonies. This indicates that the isolate is _______ for mannitol fermentation. • Question 19 When a large zone of no growth is found around an antibiotic disc being used for identification purposed, this generally means that the microbe is ______ to the antibiotic • Question 20 All of the following infections are frequently cause by Staphylococcus and Streptococcus species EXCEPT?