OpenStax Microbiology Test Bank- questions and answersChapter 2: How We See the Invisible World

OpenStax Microbiology Test Bank- questions and
answersChapter 2: How We See the Invisible World

,OpenStax Microbiology Test Bank- questions and
answersChapter 2: How We See the Invisible World
Chapter 2: How We See the Invisible World

* = Correct answer

Multiple Choice

1. Which term is used to refer to a wave’s rate of vibration?
A. amplitude
B. frequency*
C. trough
D. wavelength

Difficulty: Easy
ASM Standard: N/A

2. On the figure, which letter represents a refracted ray of light?




A. A
B. B
C. C
D. D*

Difficulty: Easy
ASM Standard: N/A

3. On the electromagnetic spectrum, which type of wave has the shortest wavelength?
A. cosmic ray*
B. infrared ray
C. ultraviolet ray
D. visible light

Difficulty: Moderate
ASM Standard: N/A

4. Dyes are often used during microscopy to increase which of the following?
A. contrast*
B. magnification
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, OpenStax Microbiology Test Bank- questions and
answersChapter 2: How We See the Invisible World
C. motility
D. resolution

Difficulty: Easy
ASM Standard: 32

5. Which of the following was the first to use the term “cells”?
A. Robert Hooke*
B. Robert Koch
C. Carolus Linnaeus
D. Antonie van Leeuwenhoek

Difficulty: Easy
ASM Standard: N/A

6. Which of the following is the typical magnification of an object viewed using a 10× ocular
lens and a 100× objective lens on a brightfield microscope?
A. 1×
B. 10×
C. 100×
D. 1000×*

Difficulty: Moderate
ASM Standard: 32

7. Most modern microscopes have two eyepieces, meaning that they are which of the
following?
A. binocular*
B. monocular
C. oil immersion
D. trinocular

Difficulty: Easy
ASM Standard: 32

8. An annular stop is used for which type of microscopy?
A. confocal
B. darkfield
C. fluorescence
D. phase contrast*

Difficulty: Easy
ASM Standard: 32

9. Which of the following is the specific name for a stain that colors the background but not the
specimen?
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