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MC 03 : PRACTIVE QUIZ [LAB 07]

Total questions: 88

Worksheet time: 1hrs 28mins

Name
Class
Date
1.

[WHAT?] the time needed to let previously inoculated culturemediatoshow a distinct colony or colonies within a desired temperature.

(a)  

2.

[WHAT?] the growth or crop of microorganisms obtained in a culture mediumafter its incubation period.

(a)  

3.

[WHAT?] any material where microorganisms may thrive for their nourishment and reproduction.

(a)  

4.

[WHAT?] a group of microorganisms growing together characteristically in a culture medium.

(a)  

5.

[WHAT?] the fished-out colony hanging on the wire loop, cotton swabs, etc. That is ready for transfer to another culture medium for cultivation and/or for further isolation.

(a)  

6.

[WHAT?] It is also the time needed for the microorganisms to adapt, grow and multiply in its new environment.

(a)  

7.

[ENUMERATE] : TYPES OF CULTURE

(a)  

8.

[WHAT?] a culture that contains only one group of microorganisms, which is usually obtained when microorganisms in a culture medium are all of the same species.

(a)  

9.

[WHAT?] a culture that accidentally contains one or more group of microorganisms, which should not be growing there at all.

(a)  

10.

[WHAT?] It means that there are two or more desired species of microorganismsliving in the culture medium.

(a)  

11.

[ENUMERATE] : TYPES OF CULTURE MEDIA: According to Use

(a)  

12.

[WHAT?] It's characterized by the sol-gel reversibility; those media wherein agar is added as a solidifying agent.

(a)  

13.

[WHAT?] It's prepared without substances like gelatin or agar.

(a)  

14.

[ENUMERATE] : TYPES OF CULTURE MEDIA: According to Physical State

(a)  

15.

[WHAT?] It can facilitate different types of microorganisms.

(a)  

16.

[WHAT?] it obtain in the form of a pancreatic extract.

(a)  

17.

[WHAT?] They are most suitable for preservation of stock cultures.

(a)  

18.

[WHAT?] These broths generallycontain a high percentage of fermentable sugar, which makes them unsuitable for many purposes

(a)  

19.

[WHAT?] They can easily be prepared and are widelyused.

(a)  

20.

[WHAT?] The extract is then simmered for 15 minutes andfiltered. Protein is removed this process and must, therefore be replacedbyadding 1% peptone. NaCl is added last.

(a)  

21.

[WHAT?] The proteolytic enzyme employedvaries, though generally it is trypsin;

(a)  

22.

[WHAT?] It consists of a watery extract of meat for 24hours at 2 degrees C. any remaining juice is squeezedfromthemeat

(a)  

23.

[WHAT?] These are prepared from peptone and commercial meat extracts.

(a)  

24.

[WHAT?] It consists of watery extract of lean meat digestedwith a proteolytic enzyme

(a)  

25.

[WHAT?] It forms the basis of most media employedinthestudy of medical pathogenic bacteria.

(a)  

26.

[WHAT?] It consists of beef extract, peptone, agar, andwater. It is often used as a base in the making of more complex media.

(a)  

27.

[ENUMERATE] : TYPES OF NUTRIENTS BROTH

(a)  

28.

[WHAT?] These are broth or semi-solid medium containing a rich supply of special nutrients that promote the growth of a particular fastidious organism while not promoting the growth of other microorganisms that might be present.

(a)  

29.

[WHAT?] It's an enrichment medium for salmonellae andsomeshigellae.

(a)  

30.

[WHAT?] It is used to encourage the growth of bacteria which are unable to grow on nutrient agar and to detect hemolytic streptococci.

(a)  

31.

[WHAT?] It is used particularly as a supplier of factors essential for the growth of Haemophilus sp., and when incubated with CO2 it is ideal for the isolation and maintenance of Neisseria meningitis and N. gonorrhoeae.

(a)  

32.

[WHAT?] It consists of a 5 to 10% sterile defibrinated blood added to melted nutrient agar that has been cooled to about 45C, then mixed by swirling.

(a)  

33.

[WHAT?] It's heated blood agar

(a)  

34.

[WHAT?] It is used particularly as a supplier of factors essential for the growth of Haemophilus sp., and when incubated with CO2 it is ideal for the isolation and maintenance of Neisseria meningitis and N. gonorrhoeae.

(a)  

35.

[ENUMERATE] : TYPES OF CULTURE MEDIA: According to Physical State

(a)  

36.

[WHAT?] They are most suitable for preservation of stock cultures.

(a)  

37.

[WHAT?] It's characterized by the sol-gel reversibility; those media wherein agar is added as a solidifying agent.

(a)  

38.

[WHAT?] Thus, desired species grows best and predominates in the culture, andapureculture could easily be obtained from a mixed specimen.

(a)  

39.

[WHAT?] This have added inhibitors that discourage the growthof certain organisms without inhibiting the growth of the one sought.

(a)  

40.

[WHAT?] It can also be used for the determination of antimicrobial sensitivity and, in particular, with the Kirby – Bauer technique.

(a)  

41.

[WHAT?] It used in the isolation of fungi.

(a)  

42.

[WHAT?] It used in the isolationof genus Mycobacteria.

(a)  

43.

[WHAT?] Used in the isolation of genus Neisseria.

(a)  

44.

[WHAT?] used in the isolation of Pseudomonas aeruginosa.

(a)  

45.

[WHAT?] used in the isolation of Bordetella Pertussis

(a)  

46.

[WHAT?] It is also a differential agarbecause the colonies of various species of Staphylococci have adifferent appearance on MSA.

(a)  

47.

[WHAT?] this medium was devised for theprimaryisolation of Neisseria gonorheae and N. meningitidis.

(a)  

48.

[WHAT?] It is also a differential agarbecause the colonies of various species of Staphylococci have adifferent appearance on MSA.

(a)  

49.

[WHAT?] Lactose fermenters have blue-black center (LF organisms produce acid that acts on the two dyes, Eosin and methyleneblue.). Non lactose fermenters are colorless

(a)  

50.

[WHAT?] Lactose fermenters appear pink to red (as a result of the action of acid formed during the fermentation of lactose on the indicator, neutral red). Non-lactose fermenters remain colorless.

(a)  

51.

[WHAT?] Lactose fermenters yield red colonies. Non-lactose fermenters are colorless. H2S producers are colonies having black centers (ferriccitrate being the indicator).

(a)  

52.

[WHAT?] both differential and selective media, usedforprimary plating and sub culturing of enteric organisms.

(a)  

53.

[WHAT?] It is frequently used to separateandidentify enteric gram (-) organism in fecal specimen. It can be used for the isolation and identification of Candida albicans.

(a)  

54.

[WHAT?] a differential and selectivemediadesigned specifically for the isolation of pathogenic entericbacilli belonging to the Salmonella and Shigella genera.

(a)  

55.

[WHAT?] these are used to grow several species of bacteria, but eachbacterium grown has a distinctive appearance.

(a)  

56.

[WHAT?] It is ideal for swabs. E.g. maintaining viability of gonococci on cervical swabs.

(a)  

57.

[WHAT?] It have been devised to protect pathogens present inclinical specimens that might not otherwise survive or that might beovergrown by non-pathogens during the transport of the specimenfromthepatient to the laboratory. Such a lapse of time may involve either minutes, hours, or days.

(a)  

58.

[WHAT?] It can differentiate bacteria capable of fermenting the sugar lactose, sucrose, and glucose.

(a)  

59.

[WHAT?] used as an indicator of motility, the production of H2S from Thiosulfate, and indole from tryptophan.

(a)  

60.

[WHAT?] . The presence of a black deposit at the bottomof thetest tube will indicate the production of H2S by the organisms.

(a)  

61.

[WHAT?] moist colonies on BAP, after 12 hrs. it turns flat and umbilicated.

(a)  

62.

[WHAT?] greenish metallic sheen (TSI – k / k)

(a)  

63.

[WHAT?] white, dry, pinhead on BAP

(a)  

64.

[WHAT?] pinpoint, hemolytic on BAP

(a)  

65.

[WHAT?] umbilicated. Pink, dry on MAC (foul milk odor)

(a)  

66.

[WHAT?] mucoid, elevated lactose fermenter

(a)  

67.

[WHAT?] glistening dew drop on CAP (Clorox odor)

(a)  

68.

[WHAT?] feathery edge on MAC (fruity odor)

(a)  

69.

[WHAT?] a-hemolytic, brown, raised colony

(a)  

70.

[WHAT?] red pigment on MAC

(a)  

71.

[WHAT?] big, grayish, dry colony on BAP and CAP

(a)  

72.

[WHAT?] ideal for the growth of extracting organisms.

(a)  

73.

[WHAT?] most useful because it allowsmanyinfusion fastidious organisms to grow

(a)  

74.

[WHAT?] They're cold-loving bacteria. Specifically, their cardinal temperatures are 20 °C for maximal growth, 15 °C or lower for optimal growth, and 0 °C or lower for minimum growth

(a)  

75.

[WHAT?] These are bacterias that can thrive in temperatures as high as 55°C (minimum 45°C, optimal temperature range 55–65°C, maximum 80°C).

(a)  

76.

[WHAT?] A group of bacteria that grow and thrive in a moderate temperature range between 68°F (20°C) and 113°F (45°C). The optimum temperature range for these bacteria in anaerobic digestion is 85°F (30°C) to 100°F (38°C).

(a)  

77.

[WHAT?] It's a microorganism that uses inorganic substrates as a source of electron donors to drive energy acquisition, using either organic carbon or carbon

dioxide as a source of carbon for constructing cellular materials

(a)  

78.

[WHAT?] These are organisms that use organic molecules as an energy

source.

(a)  

79.

[WHAT?] It's an aerobe that requires oxygen for aerobic respiration. It need oxygen to oxidize substrates (for example sugars and fats) in order to obtain energy.

(a)  

80.

[WHAT?] These are bacteria that, under normal circumstances, breathe

anaerobically but can breathe aerobically when oxygen is available.

(a)  

81.

[WHAT?] These are not only require an anaerobic atmosphere for growth

but also are inhibited by oxygen. It generate energy without using molecular O2, demonstrating a degree of adverse sensitivity to O2 which renders them unable to grow in normal air pressure.

(a)  

82.

[WHAT?] It's an organism that is capable of producing energy through aerobic respiration and then switching back to anaerobic respiration depending on the amounts of oxygen and fermentable material in the environment.

(a)  

83.

[WHAT?] Those microbes, which although requiring oxygen for growth, are

unable to grow at normal atmospheric oxygen tensions; these organisms are adapted to particular environments that contain low oxygen concentrations

(a)  

84.

[WHAT?] It's an any organism which has very complicated nutritional

requirements, meaning it will not grow without specific factors present or in specific conditions.

(a)  

85.

[WHAT?] greenish metallic sheen (TSI – k / k)

(a)  

86.

[WHAT?] It can differentiate bacteria capable of fermenting the sugar lactose, sucrose, and glucose.

(a)  

87.

[WHAT?] It encourages the growth of Staphylococci but inhibits the growth of other gram (+) bacteria.

(a)  

88.

[WHAT?] These are organisms that's characterized by their salinity

requirement, halophilic “salt-loving”. Halophilic microorganisms

constitute the natural microbial communities of hypersaline

ecosystems, which are widely distributed around the world.

(a)