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BIOD 171 module 3 Questions with Correct
Answers | Updated (100% Correct Answers)
Immunochemistry Answer: involves staining of cells to see
structures
microscopy Answer: the use of light or electrons to magnify objects
Micrometer (um) Answer: 10^-6 m, measures size of cells
Nanometer (nm) Answer: 10^-9m, used to measure cellular
organelles and viruses
Magnification Answer: the ratio of an object's image size to its real
size
Resolution of a microscope Answer: ability to distinguish two
objects as separate entities
Contrast Microscopy Answer: shows presence of dye or other
treatments
Scanning Tunneling Microscope (STM) Answer: microscope that
measures electrons that leak or "tunnel" from the surface of the
specimen
0.01nm-10nm can see atoms amino acids DNA and proteins
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Transmission Electron Microscope (TEM) Answer: 0.078-100um can
see atoms, DNA, amino, proteins, ribosomes, viruses, bacteria and
archaea, mitochondria, chloroplasts, human blood cells
scanning electron microscope Answer: 0.4-1mm amino acids - red
blood cells
compound light microscope Answer: 200 nm - 10 mm can see
bacteria and archaea, organelles, blood cells, and large protozoa
light microscope Answer: use visible light and blue wavelengths for
improved resolution, magnification 1x-2000x resolution: 10nm-
200nm can see whole cells and organelles
electron microscope Answer: uses electrons with specimens in a
vacuum, mag 1000x-100,000x resolution: 1mm - 0.1 nm prokaryotic
cells, viruses, macromolecules and large atoms
probe microscope Answer: electron probes that move over the
specimen service, mag: greater than 100,000,000x resolution: 0.01nm
- 10 nm, 3D surface of macromolecules and atoms
Bright-field Answer: count microorganisms or cells, view stained
specimen, view live cells, staining usually required, bright
background with clear or colored specimen
© 2025 All rights reserved
BIOD 171 module 3 Questions with Correct
Answers | Updated (100% Correct Answers)
Immunochemistry Answer: involves staining of cells to see
structures
microscopy Answer: the use of light or electrons to magnify objects
Micrometer (um) Answer: 10^-6 m, measures size of cells
Nanometer (nm) Answer: 10^-9m, used to measure cellular
organelles and viruses
Magnification Answer: the ratio of an object's image size to its real
size
Resolution of a microscope Answer: ability to distinguish two
objects as separate entities
Contrast Microscopy Answer: shows presence of dye or other
treatments
Scanning Tunneling Microscope (STM) Answer: microscope that
measures electrons that leak or "tunnel" from the surface of the
specimen
0.01nm-10nm can see atoms amino acids DNA and proteins
© 2025 All rights reserved
, 2
Transmission Electron Microscope (TEM) Answer: 0.078-100um can
see atoms, DNA, amino, proteins, ribosomes, viruses, bacteria and
archaea, mitochondria, chloroplasts, human blood cells
scanning electron microscope Answer: 0.4-1mm amino acids - red
blood cells
compound light microscope Answer: 200 nm - 10 mm can see
bacteria and archaea, organelles, blood cells, and large protozoa
light microscope Answer: use visible light and blue wavelengths for
improved resolution, magnification 1x-2000x resolution: 10nm-
200nm can see whole cells and organelles
electron microscope Answer: uses electrons with specimens in a
vacuum, mag 1000x-100,000x resolution: 1mm - 0.1 nm prokaryotic
cells, viruses, macromolecules and large atoms
probe microscope Answer: electron probes that move over the
specimen service, mag: greater than 100,000,000x resolution: 0.01nm
- 10 nm, 3D surface of macromolecules and atoms
Bright-field Answer: count microorganisms or cells, view stained
specimen, view live cells, staining usually required, bright
background with clear or colored specimen
© 2025 All rights reserved
