Questão 1
Questão
What method of staining was used to create this slide?
Responda
-
Acid-fast Stain
-
Endospore Stain
-
Gram Stain
-
Negative Stain
Questão 2
Questão
What kind of staining process was used to make this slide?
Responda
-
Negative Stain
-
Endospore Stain
-
Gram Stain
-
Acid-fast Stain
Questão 3
Questão
What kind of microbes are present on this slide?
Responda
-
Gram (-)
-
Endospores
-
Nocardia
-
Mycobacterium
Questão 4
Questão
Where should your backpacks and purses be stored during the lab period?
Questão 5
Questão
What items should you wear to protect yourself in the lab.
Responda
-
Lab coat
-
Safety Glasses
-
Gloves
-
Closed toe shoes
-
Hair net
-
Shoe covers
Questão 6
Questão
When do you disinfect your lab table and where do you discard the used paper towels?
Responda
-
Disinfect on the way into the lab.
-
Disinfect on the way out of the lab.
-
Paper towels go in the regular trash.
-
Paper towels go in the autoclave trash.
-
Disinfect between each step of the lab process.
Questão 7
Questão
You are dying of thirst (hunger, for smoke, chapped lips, bad breath) during the lab period. What do you do to alleviate your problem?
Responda
-
Leave
-
Disinfect your lab bench, take care of your need and then disinfect your lab bench, again.
-
Go to the corner of the lab room and take care of your need.
Questão 8
Questão
You notice your lab partner has caught the lab manual on fire. What should you do?
Responda
-
Alert the professor
-
Get the fire extinguisher near the front door
-
Get the fire extinguisher from the back of the room
-
Get deionized water from the back of the room and pour it on the fire
Questão 9
Questão
Your lab partner has managed to spill microorganisms all over the lab table. What should be done to clean up the spill?
Responda
-
Alert the professor
-
Spray disinfectant on the spill
-
Spray disinfectant on a paper towel and place on the spill
-
Keep spraying disinfectant on the paper towel
-
Wait 10 minutes
-
Wait 15 minutes
-
Dispose in autoclave trash
-
Dispose in regular trash
Questão 10
Questão
A student broke an empty glass test tube. What should be done to clean up the glass and where should the pieces of glass be disposed of?
Responda
-
Clean with dust pan and broom next to the fridge.
-
Clean with dust pan and broom near the front door.
-
Dispose of in the broken glass disposal box.
-
Dispose of in the autoclave trash.
-
Dispose of in the regular trash.
Questão 11
Questão
The instructor tripped on a backpack on the floor knocking her safety goggles off and splashing HCl in her eyes. What should she do?
Responda
-
Use the eyewash located near the front door.
-
Use the eyewash located at the back of the room.
-
Use the eyewash next to the fridge.
-
Use the eyewash near back of the room.
Questão 12
Questão
After surviving the lab period you remove your gloves by turning them inside out and then where do you toss them?
Questão 13
Questão
Choose the two major types of microscopes that have been developed and the difference between them
Responda
-
Compound and Electron.
-
Compound uses light and Electron uses electrons.
-
Compound and Bright Field.
-
Compound uses electrons and Bright Field uses light.
-
Compound uses light and Bright Field uses electrons.
Questão 14
Questão
Which microscopes are compound microscopes?
Questão 15
Questão
The ability of the microscope to enlarge an object.
Responda
-
Magnification
-
Resolving power.
-
Refractive index.
-
Resolution.
Questão 16
Questão
How clear your specimen will appear when viewed through the lenses.
Responda
-
Resolution
-
Refractive index
-
Resolving power
-
Magnification
Questão 17
Questão
How well you lens is able to bend light.
Responda
-
Refractive index.
-
Resolution
-
Resolving power
-
Magnification
Questão 18
Questão
What components influence the resolving power of a microscope?
Responda
-
Numerical aperture
-
Wavelength of light
-
Condenser
-
Diopter ring
Questão 19
Questão
Concentrates the light beam and directs light through the specimen.
Responda
-
Condenser
-
Iris diaphragm
-
Diopter ring
-
Refractive index
Questão 20
Questão
Regulates the intensity of the light entering the lens.
Responda
-
Iris diaphragm
-
Condenser
-
Diopter ring
-
Rheostat
Questão 21
Questão
Focuses the individual eye piece to your eye.
Responda
-
Diopter ring
-
Rheostat
-
Diaphragm ring
-
Iris diaphragm
Questão 22
Questão
Steps to achieve adequate lighting when the oil immersion objective is used to view a specimen.
Responda
-
Condenser raised to the highest position
-
Iris and base diaphragm are open
-
Rheostat is turned up
-
Condenser is lowered to the lowest position
Questão 23
Questão
Components that influence the resolving power of a microscope.
Responda
-
Numerical aperture
-
Wavelength of light
-
Rheostat level
-
Refractive index
Questão 24
Questão
The isolation of a single species of microbe.
Responda
-
Pure culture
-
Colony
-
Media
-
Inoculum
-
Turbdity
Questão 25
Questão
Cells from a single asexual parent that are identical.
Responda
-
Colony
-
Pure culture
-
Media
-
Inoculum
-
Turbidity
Questão 26
Questão
Nutrient material suitable for the cultivation of microorganisms.
Responda
-
Media
-
Pure culture
-
Colony
-
Turbdity
-
Inoculum
Questão 27
Questão
Transfer of a pure culture from a slant culture to a new sterile broth. The sampling of a bacterial culture.
Responda
-
Inoculum
-
Pure culture
-
Colony
-
Media
-
Turbidity
Questão 28
Questão
Cloudiness in broth that indicates growth.
Responda
-
Turbidity
-
Pure culture
-
Media
-
Colony
-
Inoculum
Questão 29
Questão
Steps involved in labeling a test tube.
Responda
-
Label a piece of labeling tape with your name and the name of the bacteria and place on test tube.
-
Use a wax pencil and label the test tube with your name and the name of the bacteria.
-
Use a marker and label the test tube with your name and the name of the bacteria.
Questão 30
Questão
What are the steps for labeling a Petri plate?
Responda
-
Label the bottom of the media side using a wax pencil or marker with your name and the organism you are transferring.
-
Label the lid using a wax pencil or marker with your name and the name of the organism you are transferring.
-
Label a piece of labeling tape with your name and the name of the organism you are transferring and place it on the lid of the Petri plate.
Questão 31
Questão
What are the steps for incubating a Petri plate?
Responda
-
Sterilize inoculating loop in Bacticinerator. Lightly drag the tip of the loop from side to side or back and forth in order to spread the inoculum. Replace lid. Incubate lid side up.
-
Sterilize inoculating loop in Bacticinerator. Lightly drag the tip of the loop from side to side or back and forth in order to spread the inoculum. Replace lid. Incubate lid side down.
Questão 32
Questão
What is meant by the statement that microorganisms are ubiquitous?
Responda
-
Microorganisms are everywhere
-
Microorganisms are hard to identify
-
Microorganisms are difficult to see without a microscope
-
Microorganisms come in many forms
Questão 33
Questão
Handling of bacteria in a manner so as to prevent contaminating laboratory media and to prevent infecting ourselves and our classmates.
Responda
-
Aseptic technique
-
Sterile transfer
-
Inoculation technique
-
Ubiquitous
Questão 34
Questão
Why are "basic" dyes used in the Gram stain?
Questão 35
Questão
State two differences between a simple stain and a differential stain.
Responda
-
Simple stain uses one dye; all bacteria are the same color; shows size, shape and arrangement. Differential stain uses two dyes; different bacteria are stained contrasting colors; shows size, shape, arrangement and something else.
-
Differential stain uses one dye; all bacteria are the same color; shows size, shape and arrangement. Simple stain uses two dyes; different bacteria are stained contrasting colors for simple identification; shows size, shape, arrangement and something else.
Questão 36
Questão
A) Has a high lipid content and thin layer of tecoic acid underneath and stains pink.
B) Has a low lipid content and thick layer containing tecoic acids and stains purple.
Responda
-
A) Gram negative bacteria
B) Gram positive bacteria
-
A) Gram positive bacteria
B) Gram negative bacteria
-
A) Gram stain
B) Acid-fast stain
-
A) Acid-fast stain
B) Gram stain
Questão 37
Questão
What us the importance of using only a pinpoint of inoculum for the smear preparation?
Questão 38
Questão
What is the importance of allowing the smear to air dry?
Responda
-
Insure the cells stay intact and stain properly.
-
Insure the cells are dead and stain properly
-
Insure the cells wont move around during staining
Questão 39
Questão
What is the importance of decolorizing smears one at a time?
Responda
-
It is the most critical step and there is no hard and fast rule on how long to decolorize.
-
It is the most critical step and don't want to drop the slides.
-
It is the most critical step and need to time it exactly.
Questão 40
Questão
List the gram stain reagents in order and state their function.
Responda
-
1) Crystal Violet - Primary stain
2) Iodine - Mordant, combines with the crystal violet in the cell.
3) Acetone or ethanol or combination of 75% ethanol/25% acetone - Decolorizer
4) Safranin - Counterstain or Secondary stain
-
1) Crystal Violet - Primary stain
2) Safranin - Counterstain or Secondary stain
3) Iodine - Mordant, combines with the crystal violet in the cell.
4) Acetone or ethanol or combination of 75% ethanol/25% acetone - Decolorizer
-
1) Crystal Violet - Primary stain
2) Acetone or ethanol or combination of 75% ethanol/25% acetone - Decolorizer
3) Iodine - Mordant, combines with the crystal violet in the cell.
4) Safranin - Counterstain or Secondary stain
-
1) Crystal Violet - Primary Stain
2) Iodine - Mordant, combines with the crystal violet in the cell
3) Safranin - Counterstain or Secondary stain
4) Acetone or ethanol or combination of 75% ethanol/25% acetone - Decolorizer
Questão 41
Questão
Why do gram negative cells lose the primary dye during decolorization?
Responda
-
The high lipid content in gram negative cell walls causes them to dissolve in the ethanol allowing the crystal violet dye to leak out.
-
The low lipid content in gram negative cell walls causes them to dissolve in the ethanol allowing the crystal violet dye to leak out.
Questão 42
Questão
Why is the Acid-fast stain considered a "differential stain"?
Responda
-
It distinguishes between two groups of organisms based on the lipid content in their cell walls.
-
It uses two positively charged dyes.
-
It uses one positively charged dye and one negatively charged dye.
-
It tells size, shape, arrangement and something else.
-
It tells size, shape and arrangement.
Questão 43
Questão
What is the difference between the decolorizer used in the Gram stain and the decolorizer used in the Acid-fast stain?
Questão 44
Questão
Lipids in the cell's waxy wall prevent the acid-alcohol from decolorizing the cell.
Responda
-
Acid-fast
-
Gram
-
Negative
-
Endospore
Questão 45
Questão
What is the difference between the Ziehl-Neelsen stain and the Kinyoun stain?
Responda
-
Ziehl-Neelsen uses steam to penetrate the mycolic acid in cell walls.
Kinyoun uses concentrated dye, hard heat fixing and longer exposure time.
-
Kinyoun uses steam to penetrate the mycolic acid in cell walls.
Ziehl-Neelsen uses concentrated dye, hard heat fixing and longer exposure time.
-
Ziehl-Neelsen uses hard heat fixing to penetrate the mycolic acid in cell walls.
Kinyoun uses concentrated dye, steam and longer exposure time.
-
Kinyoun uses hard heat fixing to penetrate the mycolic acid in cell walls.
Ziehl-Neelsen uses concentrated dye, steam and longer exposure time.
Questão 46
Questão
Which are acid-fast organisms and what disease do they cause?
Responda
-
Mycobacterium tuberculosis
Disease: Tuberculosis
-
Mycobacterium leprae
Disease: Leprosy or Hansen's disease
-
Nocardia asteroides
Disease: Nocardiosis
-
Cryptosporidium
Disease: Cryptosporidiosis
-
Mycosporidium
Disease: Mycardiosis
-
Nocardia tuberculosis
Disease: Tuberculosis
Questão 47
Questão
What are the reactants in the acid-fast stain, in order?
Responda
-
1) Carbolfuchsin
2) Acid-alcohol
3) Loeffler's methylene blue
-
1) Loeffler's methylene blue
2) Acid-alcohol
3) Carbolfichsin
-
1) Carbolfuschsin
2) Iodine
3) Acid-alcohol
4) Loeffler's methylene blue
-
1) Loeffler's methylene blue
2) Iodine
3) Acid-alcohol
4) Carbolfuchsin
Questão 48
Questão
Two methods used to force the dye into an endospore.
Questão 49
Questão
What dyes are used in the Schaffer-Fulton spore stain?
Questão 50
Questão
In the "Christmas tree" stain, the endospores are colored _________________ and the vegetative cells are colored ____________________.
Questão 51
Questão
Metabolically active, replicating cell.
Responda
-
Vegetative cell
-
Endospore
-
Germinated cell
Questão 52
Questão
The formation of endospores within a vegetative cell
Responda
-
Sporogenesis
-
Decolorization
-
Germination
Questão 53
Questão
When an endospore reverts to a vegetative state.
Responda
-
Germination
-
Sporogenesis
-
Growth
Questão 54
Questão
Why are endospores considered "the most resistant life form known"?
Responda
-
Can remain dormant indefinitely
-
Resistant to antibiotics and most disinfectants
-
Resistant to radiation
-
Resistant to boiling
-
Resistant to drying
-
Impermeability of spore coat
Questão 55
Questão
What are the medically important endospore-producing bacteria and their associated disease?
Responda
-
Bacillus anthracis
Disease: anthrax
-
Clostridium botulinum
Disease: Botulism
-
Clostridium difficile
Disease: Toxic enterocolotis
-
Clostridium perfringens
Disease: Gas gangrene, food poisoning
-
Clostridium tetani
Disease: Tetnus, lockjaw
-
Clostridium anthracis
Disease: Anthrax
Questão 56
Questão
Which medically important genera of bacteria produce endospores?
Responda
-
Bacillus
-
Clostridium
-
Streptococcus
-
Staphylococcus
Questão 57
Questão
A positive stain _____________________________ and a negative stain ______________________________.
Responda
-
Stains what you want to see
Stains everything but the structure you want to see
-
Stains everything but the structure you want to see
Stains what you want to see
-
Stains gram (+) bacteria
Stains gram (-) bacteria
-
Stains gram (-) bacteria
Stains gram (+) bacteria
Questão 58
Questão
Why are Nigrosin and India ink commonly used negative stains?
Responda
-
They are negatively charged dyes and are repelled by the negative contents of the bacterial cell.
-
They are positively charged dyes and are repelled by the positive contents of the bacterial cell.
-
They are positively charged dyes and are attracted by the negative contents of the bacterial cell.
-
They are negatively charged dyes and are attracted by the positive contents of the bacterial cell.
Questão 59
Questão
What are the advantages of using a negative stain versus a positive stain?
Responda
-
Able to see a capsule
-
Do not heat fix so can see them as they are
-
Can be used for things that don't stain.
-
Can see if it produces endospores
-
Can see if it is gram (-) or gram (+)
Questão 60
Questão
Sticky substance that is tightly bound, highly organized and generally round or oval.
Responda
-
Capsule
-
Slime layer
-
Endospore
Questão 61
Questão
Sticky substance is loosely bound and somewhat irregularly shaped.
Responda
-
Capsule
-
Slime layer
-
Endospore
Questão 62
Questão
How does a capsule contribute to the virulence of a bacteria?
Responda
-
Helps the bacteria avoid phagocytosis by white blood cells
-
Helps the bacteria attach to skin and mucous membranes
-
Is a source of nutrition for the bacteria when resources are scarce
-
Contains the pathogenic part of the bacteria
Questão 63
Questão
What are the difference(s) between the smear preparation for a Gram stain and a capsule stain?
Responda
-
A smear for a capsule stain is not heat fixed.
-
A spear from a capsule stain is not rinsed with deionized water it is rinsed with copper sulfate
-
A smear for a capsule stain uses steam
-
A smear for a Gram stain uses crystal violet and a capsule stain does not
Questão 64
Questão
Using Anthony's stain, the background will be colored ____________________ and the capsule will be colored _________________________.
Questão 65
Questão
What are the damaging by-products of oxygen during cellular respiration?
Responda
-
Superoxides
-
Peroxides
-
Carbon dioxide
-
Carbon monoxide
Questão 66
Questão
What enzymes neutralize the damaging effects of the by-products of oxygen during cellular respiration?
Responda
-
Catalase
-
Peroxidase
-
Superoxide dismutase
-
Carbonase
Questão 67
Questão
Uses oxygen as the final member of the ETC and has enzymes to break down the toxic by-products of oxygen.
Questão 68
Questão
Does not use oxygen as the final member of the ETC and lacks the enzymes to breakdown the toxic by-products of oxygen.
Questão 69
Questão
How does a candle jar achieve an atmosphere to grow microaerophilic and capnophilic organisms?
Questão 70
Questão
How does a Gas Pak jar achieve an anaerobic atmosphere?
Questão 71
Questão
Which type of organism grows equally well in all types of oxygen concentrations?
Responda
-
Facultative anaerobes
-
Microaerophiles
-
Capnophiles
-
Aerotolerant anaerobes
Questão 72
Questão
How does thioglycolate broth grow anaerobic bacteria as well as aerobic bacteria?
Responda
-
The agar prevents diffusion of O2
-
It contains a reducing agent, sodium thioglycollate, that combines with O2 to produce water
-
It contains a reducing agent, sodium thioglycollate, that combines with the agar to produce CO2 near the bottom
-
The agar prevents diffusion of CO2
Questão 73
Questão
Organisms that require around 20% atmospheric oxygen.
(Check the name of the organism and the media on which it will grow.)
Questão 74
Questão
Organisms that require between 5-15% atmospheric oxygen for growth
(Check the name of the organism and the media on which it will grow.)
Questão 75
Questão
Organisms that require between 5-15% atmospheric oxygen and increased (10%) carbon dioxide.
(Check the name of the organism and the media on which it will grow.)
Responda
-
Capnophile
-
Microaerophile
-
Grows in candle jar
-
Grows in oxygen
-
Grows in a GasPak
Questão 76
Questão
Organisms that will use a fermentative metabolic pathway in anaerobic conditions yet can convert to aerobic cellular respiration when atmospheric oxygen is present. They grow equally well in aerobic anaerobic environments.
Questão 77
Questão
Organism that can exist in the presence of oxygen, but does not use oxygen for metabolism.
Questão 78
Questão
Organisms that die in the presence of atmospheric oxygen because they lack the enzymes needed to breakdown the toxic by-products.
Questão 79
Questão
Which gene allows jellyfish to glow in the dark?
Questão 80
Questão
Bacteria cells able to take up the plasmid/DNA.
Responda
-
Competent cells
-
Competent genes
-
Competent proteins
Questão 81
Questão
What laboratory procedures are done to encourage cells to become competent?
Responda
-
Mixing cells with calcium chloride during growth phase
-
Exposing cells to extreme temperature changes during the proceduree
-
Mixing cells with with heated calcium hydroxide
-
Freezing cells
Questão 82
Questão
What is the relationship between a gene and a protein?
Responda
-
A gene is a piece of DNA that provides the instructions for making a protein
-
A protein is a piece of DNA that provides the instructions for making a gene
-
DNA is a piece of a protein that provides the instructions for making a gene
Questão 83
Questão
Chromosomal DNA ___________________________________ and plasmids _________________________________________.
Responda
-
Carries genes needed for the hereditary characteristics essential for bacterial growth and reproduction.
Small pieces of circular DNA that have genes for one or more traits that may be beneficial but are not essential for bacterial survival.
-
Small pieces of circular DNA that have genes for one or more traits that may be beneficial but are not essential for bacterial survival.
Carries genes needed for the hereditary characteristics essential for bacterial growth and reproduction.
-
Carries genes needed for the hereditary characteristics that may be beneficial but are not essential for bacterial growth and reproduction.
Small pieces of circular DNA that have genes for one or more traits that are essential for bacterial survival.
Questão 84
Questão
Which genes are contained in the pGLO plasmid?
Questão 85
Questão
How is expression of the Green Fluorescent Protein gene regulated?
Responda
-
The Ara-C gene controls expression of GFP via the sugar arabinose
-
The Ara-B gene controls expression of GFP via the sugar arabinose
-
The Ara-C gene controls expression of GFP via the sugar glucose
Questão 86
Questão
Chemicals produced by microorganisms that in small quantities can inhibit the growth of other microorganisms
Questão 87
Questão
Determines the lowest concentration of an antibiotic that is able to inhibit the growth of a test organism.
Questão 88
Questão
A plastic coated strip that contains a gradient
Questão 89
Questão
What are the disadvantages of using a broad spectrum antibiotic?
Responda
-
Contributes to escalating drug resistance
-
Wipes out a person's normal flora resulting in superinfections
-
Only works on weak bacteria
Questão 90
Questão
What does the antibiotic test result "sensitive" indicate about the test organism?
Responda
-
An organism is susceptible to drug concentrations obtained in the body using normal therapeutic doses.
-
The antibiotic is likely to be effective against the pathogen
-
The antibiotic is not likely to work.
Questão 91
Questão
What factors must be controlled in order to standardize the Kirby-Bauer test?
Responda
-
Stability of the antibiotic
-
Rate of diffusion of the antibiotic
-
pH of the culture medium
-
Depth of the culture medium
-
Inoculum density
-
Incubation time
-
Incubation temperature
-
Concentration of antibiotic
Questão 92
Responda
-
Arm
-
Rheostat
-
Power switch
-
Coarse focus knob
Questão 93
Responda
-
Rheostat
-
Power switch
-
Coarse focus knob
-
Arm
Questão 94
Responda
-
Rheostat
-
Power switch
-
Coarse focus knob
-
Fine focus knob
Questão 95
Responda
-
Coarse focus knob
-
Fine focus knob
-
RHeostat
-
Power switch
Questão 96
Responda
-
Fine focus knob
-
Coarse focus knob
-
Rheostat
-
Power switch
Questão 97
Responda
-
Ocular
-
Diopter
-
Diaphragm ring
-
Fine focus knob
Questão 98
Responda
-
Mechanical stage
-
Base
-
Slide stage
-
Ocular stage
Questão 99
Responda
-
Fine focus knob
-
Coarse focus knob
Questão 100
Responda
-
Base
-
Mechanical stage
-
Mechanical base
Questão 101
Responda
-
A - Objective lens
B - Iris diaphragm lever
C - Condenser centering screw
D - Base diaphragm
E - Mechanical stage knob
-
A - Ocular lens
B - Iris diaphragm lever
C - Condenser centering screw
D - Base diaphragm
E - Mechanical stage knob
-
A - Ocular lens
B - Condenser centering screw
C - Iris diaphragm lever
D - Base diaphragm
E - Mechanical stage knob
-
A - Ocular lens
B - Iris diaphragm lever
C - Mechanical stage knob
D - Base diaphragm
E - Condenser centering screw
Questão 102
Responda
-
A - Iris diaphragm lever
B - Condenser centering screw
C - Base diaphragm
-
A - Condenser centering screw
B - Iris diaphragm lever
C - Base diaphragm
-
A - Iris diopter screw
B - Iris diaphragm lever
C - Base diaphragm
-
A - Iris diopter lever
B - Condenser centering screw
C - Base diaphragm
Questão 103
Responda
-
A - Revolving nose piece
B - Mechanical stage clip
-
A - Objective ring
B - Mechanical stage clip
-
A - Diopter ring
B - Mechanical stage clip
Questão 104
Responda
-
A - Condenser knob
B - Condenser
C - Base diaphragm ring
-
A - Condenser knob
B - Condenser ring
C - Base
-
A - Condenser ring
B - Condenser
C - Base
Questão 105
Questão
In the thioglycollate test tube A, what kind of organism does the growth represent?
Responda
-
Microaerophile
-
Obligate/Strict aerobe
-
Facultative anaerobe
-
Obigate/strict anaerbe
Questão 106
Questão
In the thioglycollate test tube B, what kind of organism does the growth represent?
Responda
-
Microaerophile
-
Obligate/Strict aerobe
-
Facultative anaerobe
-
Obligate anaerobe
Questão 107
Questão
In the thioglycollate test tube C, what kind of organism does the growth represent?
Responda
-
Microaerophile
-
Obligate/strict aerobe
-
Facultative anaerobe
-
Obligate/strict anaerobe
Questão 108
Questão
In the thioglycollate test tube D, what kind of organism does the growth represent?
Responda
-
Microaerophile
-
Obligate/strict aerobe
-
Facultative anaerobe
-
Obligate/strict anaerobe
Questão 109
Questão
On a luria plate with Ampicillin, why is there no E. coli growth?
Responda
-
Because E.coli are sensitive to Ampicillin
-
Because E. coli are resistant to Ampicillin
-
Because luria does not contain the nutrients necessary for growth.
Questão 110
Questão
What protein allowed E. coli to grow on the plate with luria, Ampicillin and pGlo?
Questão 111
Questão
What gene allowed the E. coli to grow on the plate with luria, Ampicillin and pGlo?
Questão 112
Questão
What molecule allowed the E. coli to glow like a jellyfish?
Questão 113
Questão
What media is used for the antibiotic sensitivity test?
Responda
-
Mueller hinton
-
Kirby Bauer
-
Luria
Questão 114
Questão
What is the result of the beta lactamase test pictured?
Responda
-
It is pink and therefore, the test is negative and the microbe is sensitive to penicillin
-
it is pink and therefore, the test is positive and the microbe is sensitive to penicillin
-
it is pink and therefore, the test is positive and the microbe is resistant to penicillin
-
It is pink and therefore, the test is negative and the microbe is resistant to penicillin
Questão 115
Questão
Beta lactamase test
Responda
-
It is yellow and therefore, the test is positive and the microbe is resistant to penicillin
-
It is yellow and therefore, the test is negative and the microbe is resistant to penicillin
-
It is yellow and therefore, the test is positive and the microbe is sensitive to penicillin
-
It is yellow and therefore, the test is negative and the microbe is sensitive to penicillin
Questão 116
Questão
Why us thioglycollate a semi-solid agar?
Questão 117
Questão
Why are agar plates labeled on the bottom and inverted when incubated?
Responda
-
Labeled on the bottom in case you lose the lid and inverted during incubation to prevent condensation from dripping onto the agar surface
-
Labeled on the bottom in case you lose the lid and inverted so you can read the label
Questão 118
Questão
Why hold the test tube with your little finger while taking your bacterial sample?
Responda
-
So you do not contaminate the cap.
-
So the cap doesn't roll away.
-
So you can stretch your fingers.
Questão 119
Questão
Describe the proteins encoded in the pGLO plasmid.
Questão 120
Questão
What is the principal of the beta lactamase test?
Questão 121
Questão
Explain the regulation mechanism of the Green Fluorescent Protein gene expression.
Questão 122
Questão
Define reducing agent
Questão 123
Questão
What are the criteria used to describe a bacterial colony>
Responda
-
Surface
-
Elevation
-
Whole colony
-
Edge
-
Color
Questão 124
Questão
Locations of items in the lab
Responda
-
Near the front door: Fire extinguisher, Eye wash, Shower, Gloves
-
Back of room: Fume hood
-
Lab bench: Disinfectant, Autoclave bags, Paper towels
-
Near Sinks: Bleach, Dyes used for stains, Paper towels (above)
-
Fume hood: Broken glass disposal box (underneath), Autoclave bags
-
Front podium: Phone
-
Back: Test tube racks, MSDS notebooks (back corner),
-
Next to fridge: Dustpan and broom
Questão 125
Questão
Which items are disposed of in the autoclave trash?
Questão 126
Questão
Which items should be disposed of in the disinfectant basin?
Questão 127
Questão
Which itens should be disposed of in the regular trash?