Question 1

The Five I's of studying microorganisms include all of the following except ______.

Accepted Answer

A)  identification
B)  isolation
C)  incubation
D)  infection
E)  inoculationF) A) and E)
G) D) and E)

Question 2

Magnification is achieved in a compound microscope through the initial magnification of the specimen by the _____ lens.This image is then projected to the _____ lens that will further magnify the specimen to form a virtual image received by the eye.

Accepted Answer

A)  ocular; oil immersion
B)  scanning; objective
C)  ocular; objective
D)  objective; ocularE) B) and C)
F) None of the above

Question 3

A scanning confocal microscope

Accepted Answer

A)  produces specimen images on electron micrographs.
B)  uses dyes that emit visible light when excited by ultraviolet radiation.
C)  uses ultraviolet light to form a specimen image.
D)  scans narrow planes and can build a three-dimensional image of the specimen.E) A) and C)
F) All of the above

Question 4

A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium. Following incubation, only the E. coli grows in the culture. What is the most likely explanation?

Accepted Answer

A)   The culture medium was selective.
B)   The culture medium was differential.
C)   The microbiologist used too much inoculum.
D)   The culture was contaminated.
E)   The incubation temperature was incorrect.F) D) and E)
G) A) and E)

Question 5

All of the following pertain to the fluorescence microscope except

Accepted Answer

A)  it is a type of compound microscope.
B)  it is used to diagnose certain infections.
C)  it uses electrons to produce a specimen image.
D)  it requires the use of dyes like acridine or fluorescein.
E)  it requires an ultraviolet radiation source.F) C) and D)
G) B) and D)

Question 6

All of the following are examples of different types of microbiological media except ______.

Accepted Answer

A)  agar
B)  enriched
C)  broth
D)  Petri dish
E)  semisolidF) B) and D)
G) A) and C)

Question 7

Bacterial cultures are easily identified from their microscopic appearance.

Accepted Answer

A) True 
 B)False

Question 8

Fixed smears of specimens are required to perform the Gram stain or the endospore stain.

Accepted Answer

A) True 
 B)False

Question 9

Agar is a complex polysaccharide that comes from a/an ______.

Accepted Answer

A)  bacterium
B)  algae
C)  fungus
D)  marine invertebrate
E)  green plantF) C) and D)
G) A) and E)

Question 10

Differential media result in which of the following observable characteristics?

Accepted Answer

A)  Differently colored colonies
B)  Different media color after incubation
C)  Chemical precipitates
D)  Gas bubbles
E)  All of the choices are correct.F) D) and E)
G) B) and D)

Question 11

Who invented the first crude microscope by grinding glass?

Accepted Answer

A)  Lister
B)  Schultz and Schwann
C)  Leeuwenhoek
D)  Redi
E)  PasteurF) B) and E)
G) B) and D)

Question 12

Comparing transmission electron microscopy with scanning electron microscopy, the following statement is true.

Accepted Answer

A)  Transmission EM is used for internal detail of cells and subcellular structures.
B)  Transmission EM gives detail of the external architecture of cells.
C)  Transmission EM requires dyes.
D)  Transmission EM can provide good images of bacteria but not viruses.E) A) and B)
F) C) and D)

Question 13

The specimen preparation technique that is best for viewing cell motility is the ______.

Accepted Answer

A)  flagellar stain
B)  Gram stain
C)  negative stain
D)  hanging drop
E)  fixed, stained smearF) A) and B)
G) B) and D)

Question 14

Table 3.6 in your textbook uses Paramecium to illustrate several types of light microscopy.Each image is magnified 230X and measures about 4 cm.The actual size of a Paramecium is about ______.

Accepted Answer

A)  920  μ\muμ m
B)  0.2  μ\muμ m
C)  175  μ\muμ m
D)  57.5  μ\muμ m
E)  4,000  μ\muμ m F) B) and D)
G) A) and C)

Exam 3: Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

The specimen preparation technique that is best for viewing cell motility is the ______.

Correct Answer
verified

Differential media result in which of the following observable characteristics?

Correct Answer
verified

Magnification is achieved in a compound microscope through the initial magnification of the specimen by the _ lens.This image is then projected to the _ lens that will further magnify the specimen to form a virtual image received by the eye.

Correct Answer
verified

A scanning confocal microscope

Correct Answer
verified

Table 3.6 in your textbook uses Paramecium to illustrate several types of light microscopy.Each image is magnified 230X and measures about 4 cm.The actual size of a Paramecium is about ______.

Correct Answer
verified

The Five I's of studying microorganisms include all of the following except ______.

Correct Answer
verified

All of the following pertain to the fluorescence microscope except

Correct Answer
verified

A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium. Following incubation, only the E. coli grows in the culture. What is the most likely explanation?

Correct Answer
verified

All of the following are examples of different types of microbiological media except ______.

Correct Answer
verified

Agar is a complex polysaccharide that comes from a/an ______.

Correct Answer
verified

Comparing transmission electron microscopy with scanning electron microscopy, the following statement is true.

Correct Answer
verified

Bacterial cultures are easily identified from their microscopic appearance.

Correct Answer
verified

Who invented the first crude microscope by grinding glass?

Correct Answer
verified

Fixed smears of specimens are required to perform the Gram stain or the endospore stain.

Correct Answer
verified

Exam 3: Tools of the Laboratory: Methods for the Culturing of Microscopic Analysis of Microorganisms

The specimen preparation technique that is best for viewing cell motility is the ______.

Correct AnswerverifiedShow Answer

Differential media result in which of the following observable characteristics?

Correct AnswerverifiedShow Answer

Magnification is achieved in a compound microscope through the initial magnification of the specimen by the _____ lens.This image is then projected to the _____ lens that will further magnify the specimen to form a virtual image received by the eye.

Correct AnswerverifiedShow Answer

A scanning confocal microscope

Correct AnswerverifiedShow Answer

Table 3.6 in your textbook uses Paramecium to illustrate several types of light microscopy.Each image is magnified 230X and measures about 4 cm.The actual size of a Paramecium is about ______.

Correct AnswerverifiedShow Answer

The Five I's of studying microorganisms include all of the following except ______.

Correct AnswerverifiedShow Answer

All of the following pertain to the fluorescence microscope except

Correct AnswerverifiedShow Answer

A microbiologist inoculates Staphylococcus epidermidis and Escherichia coli into a culture medium. Following incubation, only the E. coli grows in the culture. What is the most likely explanation?

Correct AnswerverifiedShow Answer

All of the following are examples of different types of microbiological media except ______.

Correct AnswerverifiedShow Answer

Agar is a complex polysaccharide that comes from a/an ______.

Correct AnswerverifiedShow Answer

Comparing transmission electron microscopy with scanning electron microscopy, the following statement is true.

Correct AnswerverifiedShow Answer

Bacterial cultures are easily identified from their microscopic appearance.

Correct AnswerverifiedShow Answer

Who invented the first crude microscope by grinding glass?

Correct AnswerverifiedShow Answer

Fixed smears of specimens are required to perform the Gram stain or the endospore stain.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Magnification is achieved in a compound microscope through the initial magnification of the specimen by the _ lens.This image is then projected to the _ lens that will further magnify the specimen to form a virtual image received by the eye.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified