Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Microbiology zamora > Exam 3 > Flashcards

Exam 3 Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

A sterilizer that employs superheated steam under pressure is called a(n): a) autoclave b) hot air oven c) cavitron d) filter e) Petroff Hauser cell

A

a) autoclave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

An example of a generalized transducing phage: a) l phage b) P-22 phage c) o 6 phage d) QB phage

A

b) P-22 phage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The enzyme primase: a) is the same thing as DNA polymerase b) is a polymerase associated with RNA primer synthesis c) ligates two primer strands d) is a polymerase that transcribes RNA to DNA

A

b) is a polymerase associated with RNA primer synthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A substance that has been pasteurized: a) may contain pathogenic bacteria b) contains no microbial life c) has no bacterial spores d) is not considered sterile e) is considered dangerous to ones health

A

d) is not considered sterile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Organisms that have a wide range of growth temperatures are said to be: a) eurythermal b) stenothermal c) psychrophilic d) minithermal e) allthermal

A

a) eurythermal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Ultraviolet light damages bacterial cells by affecting the: a) bacterial cell wall b) bacterial DNA c) cell membrane d) bacterial ribosomes e) bacterial flagella

A

b) bacterial DNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

An organism that requires oxygen but at lower concentrations than those found in the atmosphere is called: a) basophilic b) microaerophilic c) aerobic d) barotolerant

A

b) microaerophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Organisms that require high salt concentrations in order to grow are called: a) barotolerant b) stenothermal c) halophilic d) microaerophilic e) aerobic

A

c) halophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Activities of a chemotherapeutic agent that damage the host: a) plasmids b) broad spectrum c) side effects d) antimetabolites

A

c) side effects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Your swimming pool has been overrun with algae. What would you use to kill these algae? a) mercuric nitrate b) copper sulfate c) potassium phosphate d) potassium nitrate

A

b) copper sulfate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A codon is made up of: a) 1 nucleotide b) 3 nucleotides c) 1 base d) a long series of nucleotides

A

b) 3 nucleotides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the last step of translation? a) assembly of the 30 S initiation complex b) attachment of the first tRNA to the mRNA c) binding of the first tRNA to the P site d) translocation e) termination

A

e) termination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

An example of a cationic detergent that interacts with the cell membrane: a) quaternary ammonium b) alcohols c) phenol d) chloramine T

A

a) quaternary ammonium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

An anti-microbial agent that kills bacteria is called: a) bactericidal b) bacteriostatic c)algilytic d) proteostatic e) fungicidal

A

a) bactericidal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The enzyme responsible for sealing Okasaki fragments is: a) gyrase b) DNA polymerase c) lipase d) primase e) ligase

A

e) ligase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Which organism would not produce catalase? a) Staphylococcus aureus b) Pseudomonas aeruginosa c) Bacillus subtilis d) Bacteriodes amylophilus

A

d) Bacteriodes amylophilus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The region of DNA to which the RNA polymerase binds; a) leader sequence b) Okasaki fragment c) promoter d) nucleosome e) gene

A

c) promoter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

An example of an organism that would be found growing in jam: a) Bacillus subtilis b) Xeromyces sp. c) Rhodospirillum sp. d) Ruminococcus sp.

A

b) Xeromyces sp.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The prevention of infection of living tissues by microorganisms is called: a) disinfection b) antisepsis c) sterilization d) sanitization

A

b) antisepsis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The construction of protein from mRNA is: a) replication b) transcription c) translation d) metabolism

A

c) translation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The lowest temperature at which a microbial population is killed in a specific period of time is the: a) thermal death time b) thermal death point c) decimal reduction time d) z value

A

b) thermal death point

22
Q

This antibiotic is active against rickettsias, chlamydias, and gram negative bacteria: a) tetracycline b) sulfanilimide c) penicillin d) amphoteracin e) ampicillin

A

a) tetracycline

23
Q

An example of a cephalosporin: a) Keflex b) ampicillin c) tetracyclin d) interferon

A

a) Keflex

24
Q

A period of two hours at 160C is required for killing bacteria: a) in an autoclave b) if free flowing steam is used c) in a hot air oven d) if ultraviolet light is used e) in the cavitron

A

c) in a hot air oven

25
Q

An example of an obligate anaerobe: a) Bacillus subtilis b) Escherichia coli c) Methanococcus jannaschii d) Streptococcus pyrogenes

A

c) Methanococcus jannaschii

26
Q

Removal of microorganisms from liquids and gases by passing the material through a substance with pore sizes designed not to allow microorganisms to penetrate: a) tyndallization b) pasteurization c) filtration d) sanitization

A

c) filtration

27
Q

Organisms that grow at high temperatures are called: a) halophiles b) basophiles c) thermophiles d) psychrophiles

A

c) thermophiles

28
Q

Will all point mutations lead to an observable change in the protein for which it codes? a) yes b) no

A

b) no

29
Q

The effect of penicillin is more evident in Gram positive bacteria than in Gram negative bacteria: a) true b) false

A

a) true

30
Q

Small circular DNA molecules that can exist seperate from the chromosome or be integrated into it: a) antibiotics b) disinfectant c) plasmid d) nucleosomes e) genes

A

c) plasmid

31
Q

Which of the following does not inhibit protein synthesis: a) chloramphenicol b) tetracycline c) streptomycin d) penicillin

A

d) penicillin

32
Q

The compound used by Joseph Lister in the 1860s as a disinfectant: a) hypochlorite b) wescodyne c) phenol d) hydrogen peroxide e) sulfanilamide

A

c) phenol

33
Q

Name a toxic form of oxygen: a) triplet oxygen b) singlet oxygen c) peroxide d) a and b e) b and c

A

e) b and c

34
Q

Which of the following is a sterilizing gas that can be used on hospital gowns and instruments: a) iodine b) ethylene oxide c) lysol d) merthiolate e) nitrous oxide

A

b) ethylene oxide

35
Q

The killing of spore forming bacteria by alternately heating to kill the vegetative cells and incubating to allow the germination of spores into vegetative cells that are then killed by another heating cycle is called: a) pasteurization b) germ theory c) tyndallization d) germination e) disinfection

A

c) tyndalization

36
Q

Mutations that result in a change in the reading frame: a) point mutation b) missense mutation c) silent mutation d) induced mutation e) frameshift mutation

A

e) frameshift mutation

37
Q

A drug that blocks the function of a metabolic pathway is called: a) growth factor analog b) nucleotide c) lysogen d) all of the above

A

a) growth factor analog

38
Q

To what do the designations 3’ and 5’ refer? a) the number of phosphate molecules in a nucleotide b) the number of nitrogen atoms in a nitrogenous base c) the position of a nucleotide in single stranded DNA d) the carbon atoms in a carbohydrate’s ring e) the number of covalent bonds linking two nucleotides in the same DNA strand

A

d) the carbon atoms in a carbohydrate’s ring

39
Q

An organism that can grow in sulfuric acid is said to be: a) basophilic b) barotolerant c) acidophilic d) psychrophilic e) barophilic

A

c) acidophilic

40
Q

The two most important alcohol germicides are: a) ethanol and methanol b) ethanol and isopropanol c) methanol and butanol d) methanol and isopropanol

A

b) ethanol and isopropanol

41
Q

It prevents gonorrhea of the eye in newborns: a) copper sulfate b) mercurochrome c) silver nitrate d) lead acetate

A

c) silver nitrate

42
Q

An example of a hyperthermophilic bacteria: a) Escherichia coli b) Pyrolobus fumarii c) Yersinia entercolitica d) Trypanosoma cruzi e) Pseudomonas aeruginosa

A

b) Pyrolobus fumarii

43
Q

Sulfanilamide is an example of an antimicrobial agent that resembles a growth factor. What is the growth factor it resembles? a) 5 fluorouracil b) phenylalanine c) PABA d) all of the above

A

c) PABA

44
Q

When a chemotherapeutic agent attacks many different pathogens it is said to be: a) an antimetabolite b) broad spectrum c) narrow spectrum d) germicidal

A

b) broad spectrum

45
Q

An example of an antiviral agent: a) griseofulvin b) ampicillin c) tetracyclin d) interferon e) Keflex

A

d) interferon

46
Q

Which is the most rapid way to achieve sterilization? a) in an autoclave b) tyndallization c) in a pre-vacuum autoclave d) ultrasonic vibrations e) direct flame

A

d) ultrasonic vibrations

47
Q

When a recipient cell acquires a piece of naked DNA from the environment it is called: a) conjugation b) transformation c) transduction d) transfection

A

b) transformation

48
Q

An example of a aminoglycoside antibiotic: a) Keflex b) ampicillin c) streptomycin d) tetracycline

A

c) streptomycin

49
Q

An example of an antifungal agent: a) polyoxin b) ampicillin c) tetracyclin d) interferon e) Keflex

A

a) polyoxin

50
Q

The gas used in municipal water supplies to keep bacterial populations low: a) is a phenol derivative b) has an oligodynamic action c) is also used to preserve food d) is chlorine e) unites with the bacterial chromosome

A

d) is chlorine

Microbiology zamora (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions