Question 1

If aqueous cytoplasm was submerged in a beaker of immersion oil, the slide would be

Accepted Answer

A)  undetectable. 
B)  brighter than its surroundings. 
C)  darker than its surroundings. 
D)  fluorescent. 
E)  stained. 
A)  undetectable. 
B)  brighter than its surroundings. 
C)  darker than its surroundings. 
D)  fluorescent. 
E)  stained.

Question 2

A useful application of dark-field optics is the study of bacterial

Accepted Answer

A)  motility. 
B)  surfaces. 
C)  interiors. 
D)  shape. 
E)  structure. 
A)  motility. 
B)  surfaces. 
C)  interiors. 
D)  shape. 
E)  structure.

Question 3

Which of these techniques can be used to localize the DNA sequence at the origin of replication in a bacterial cell?

Accepted Answer

A)  fluorescence microscopy 
B)  phase contrast 
C)  X-ray diffraction 
D)  atomic force microscopy 
E)  cryo-EM 
A)  fluorescence microscopy 
B)  phase contrast 
C)  X-ray diffraction 
D)  atomic force microscopy 
E)  cryo-EM

Question 4

Describe three conditions that are necessary for electromagnetic radiation to resolve an object.

Accepted Answer

There must be contrast between the objec

Question 5

Cryo-electron microscopy (cryo-EM) is differentiated from transmission electron microscopy because it

Accepted Answer

A)  requires making thin slices of the sample to be viewed. 
B)  does not require staining with heavy metals. 
C)  may be used to view living tissues. 
D)  uses a weaker electron beam. 
E)  can provide a color image of the microbial cell. 
A)  requires making thin slices of the sample to be viewed. 
B)  does not require staining with heavy metals. 
C)  may be used to view living tissues. 
D)  uses a weaker electron beam. 
E)  can provide a color image of the microbial cell.

Question 6

What is the MOST important property that enables a lens to magnify an image?

Accepted Answer

A)  absorption 
B)  fluorescence 
C)  reflection 
D)  refraction 
E)  scattering 
A)  absorption 
B)  fluorescence 
C)  reflection 
D)  refraction 
E)  scattering

Question 7

The highest useful magnification for a light microscope is about

Accepted Answer

A)  100X. 
B)  1,000X. 
C)  10,000X. 
D)  100,000X. 
E)  1,000,000X. 
A)  100X. 
B)  1,000X. 
C)  10,000X. 
D)  100,000X. 
E)  1,000,000X.

Question 8

What is the total magnification of a light microscope when using a 25X ocular and 40X objective lens?

Accepted Answer

A)  15X 
B)  65X 
C)  400X 
D)  1,000X 
E)  1,200X 
A)  15X 
B)  65X 
C)  400X 
D)  1,000X 
E)  1,200X

Question 9

Which of the following techniques are based upon wave interference?

Accepted Answer

A)  X-ray diffraction and phase contrast microscopy 
B)  phase contrast and dark-field microscopy 
C)  bright-field and dark-field microscopy 
D)  X-ray diffraction and atomic force microscopy 
E)  scanning and transmission electron microscopy 
A)  X-ray diffraction and phase contrast microscopy 
B)  phase contrast and dark-field microscopy 
C)  bright-field and dark-field microscopy 
D)  X-ray diffraction and atomic force microscopy 
E)  scanning and transmission electron microscopy

If aqueous cytoplasm was submerged in a beaker of immersion oil, the slide would be

A useful application of dark-field optics is the study of bacterial

Which of these techniques can be used to localize the DNA sequence at the origin of replication in a bacterial cell?

Describe three conditions that are necessary for electromagnetic radiation to resolve an object.

Cryo-electron microscopy (cryo-EM) is differentiated from transmission electron microscopy because it

What is the MOST important property that enables a lens to magnify an image?

The highest useful magnification for a light microscope is about

What is the total magnification of a light microscope when using a 25X ocular and 40X objective lens?

Which of the following techniques are based upon wave interference?

Microbial Life: Origin and Discovery

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

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Exam 2: Observing the Microbial Cell

If aqueous cytoplasm was submerged in a beaker of immersion oil, the slide would be

A useful application of dark-field optics is the study of bacterial

Which of these techniques can be used to localize the DNA sequence at the origin of replication in a bacterial cell?

Describe three conditions that are necessary for electromagnetic radiation to resolve an object.

Cryo-electron microscopy (cryo-EM) is differentiated from transmission electron microscopy because it

What is the MOST important property that enables a lens to magnify an image?

The highest useful magnification for a light microscope is about

What is the total magnification of a light microscope when using a 25X ocular and 40X objective lens?

Which of the following techniques are based upon wave interference?

Microbial Life: Origin and Discovery

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Viral Molecular Biology

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

Filters