35. The network of hyphae produced by molds is called: a) cilia b) flagella c) c

Question

35. The network of hyphae produced by molds is called: a) cilia b) flagella c) conidia d) mycelium

36. Sexual spores called ascospores are produced: a) by budding b) inside the basidiospores c) inside the conidia d) in a saclike structure called an ascus

45. How do yeasts reproduce? a) sexually only b) asexually only c) asexually and sexually

47. You performed an ELISA test on four patient samples and included the appropriate controls. After the test was done, Patients 1 and 3 were brown and Patients 2 and 4 were clear. Both the positive and negative controls turned brown as well. How would you report these results? a) Patients 1 and 3 are negaitive and patients 2 and 4 are positive b) Patients 1 and 3 are positive and patients 2 and 4 are negative c) The doctor should interpret the results since you are only a lab tech d) These results are invalid and the test needs to be repeated.

21. A patient has been shown to have an overabundance of bacteria from the family Enterobacteriaceae. You perform an IMVIC test series and the results show a positive methyl red test, a negative Voges-Proskauer test and a negative Citrate Utilization test. Which organism is infecting this person? a) Klebsiella pneumoniae b) These results are inconclusive c) Escherichia coli d) Enterobacter aerogenese

23. Which of the following organisms shows carbohydrate fermentation of lactose, dextrose, or sucrose? a) Both Escherichia coli and Enterobacter aerogenes b) Neither Escherichia coli and Enterobacter aerogenes c) Escherichia coli d) Enterobacter aerogenes

48. You cultured a patient's sample and received the following results. Which organism is the patient infected with? Mannitol salt agar: growth and yellow color Phenylethyl alcohol agar: growth a) Escherichia coli b) Staphylococcus aureus c) Streptococcus sanguis d) Enterobacter aerogenese

13. All enteric bacteria, including Escherichia coli, oxidize glucose for their energy needs. In the methyl red (MR) rest, E. coli produce a mixture of fermentation acids. The presence of those acids is detected: a) with the addition of phenol red indicator, the media changes from yellow to red b) with the addition of phenol red indicator, the media changes from red to yellow c) with the addition of methyl red indicator, the media changes from yellow to red d)with the addition of methyl red indicator, the media changes from red to yellow

14. what is the msot important ingredient in the MR-VP media? Hint: it is a carbohydrate. a)fructose b)citrate c)glucose d)tryptophan

15. in the Voges-Proskauer test, we can differentitate among enteric organisms like: a) Escherichia coli, Enterobacter aerogenese, and Klebsiella pneumonia b) Staphylococcus aureus, Escherichia coli, Klebsiella pneumonia c) Escherichia coli, Micrococcus luteus, and Bacillus cereus d) Lactococcus lactis, Klebsiella pneumoniae, and Bacillus cereus

16. The methyl red test determines the capability of some organisms to produce: a) sodium carbonate b) indole c) organic acids d) non-acidic or neutral end products

32. The branch of microbiology that is involved in the identification and characterization of fungi is called: a) Microbial ecology b) Bacteriology c) Pathology d) Mycology

34. Which of the following is a structure not associated with molds? a) conidia b) mycelium c) cilia d)hyphae

43. Why can't strict anaerobes tolerate oxygen? a) They are lacking the enzymes oxidase and superoxide dismutase b) They are lacking superoxide peroxidase and oxidase c) They are lacking the enzymes catalase and superoxide dismutase d)They are unable to ferment the oxygen.

50. Sterile techniques are not as important as proper subculturing. a) True b) False

51. What does IMViC stand for? I= M= V= C=

Explanation / Answer

35. b) flagella

36. c) inside the conidia

50. B) False

51. Except for the lowercase "i", which is added for ease of pronunciation, each of the letters in "IMViC" stands for one of these tests. "I" is for indole test; "M" is for methyl red test; "V" is for Voges-Proskauer test, and "C" is for citrate test.

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