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Straighterline Microbiology Midterm Review Questions and Answers 100% Pass

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Straighterline Microbiology Midterm Review Questions and Answers 100% Pass Agar is a complex polysaccharide that comes from a/an ___________. a. green plant b. fungus c. bacterium d. algae e. marine invertebrate - ANSWER-d. algae Using microbes to detoxify a site contaminated with heavy met...

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  • November 18, 2024
  • 44
  • 2024/2025
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  • Questions & answers
  • Straighterline Microbiology
  • Straighterline Microbiology
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SophiaBennett
Straighterline Microbiology Midterm Review
Questions and Answers 100% Pass


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




a. green plant


b. fungus


c. bacterium


d. algae


e. marine invertebrate - ANSWER✔✔-d. algae


Using microbes to detoxify a site contaminated with heavy metals is an example of

_________.




a. biotechnology


b. bioremediation


c. decomposition


d. immunology


Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 1/44

,e. epidemiology - ANSWER✔✔-b. bioremediation


The three physical forms of laboratory media are _____________.




a. solid, liquid, and gas


b. solid, semisolid, and liquid


c. a streak plate, a pour plate, and a broth


d. reducing, transport, and enumeration - ANSWER✔✔-b. solid, semisolid, and liquid


Which of the following is a traditional human use of microorganisms?




a. baking


b. treating water and sewage


c. mass-producing antibiotics


d. cleaning up oil spills - ANSWER✔✔-a. baking bread


Which of the following represents a synthesis reaction?




a. AB --> A + B


b. A + B --> AB


Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 2/44

,c. AB + XY --> AY +XB


d. AB + XY <--> AY + XB - ANSWER✔✔-b. A + B --> AB


Basic dyes are




a. attracted to the acidic surface of bacterial cells


b. anionic


c. used in negative staining


d. repelled by cells


e. dyes such as India ink and nigrosin - ANSWER✔✔-a. attracted to the acidic surface of

bacterial cells


The type of microscopy in which you would observe brightly illuminated specimens

against a black background is __________




a. confocal


b. dark-field


c. phase-contrast


d. fluorescence




Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 3/44

, e. electron - ANSWER✔✔-b. dark-field


A reducing medium is used to culture _________ organisms.




a. fastidious


b. aerobic


c. anaerobic


d. pathogenic - ANSWER✔✔-c. anaerobic


In the cell cytoplasm, molecules of ATP are a ________




a. solute


b. solvent - ANSWER✔✔-a. solute


A diagram of the three domains (Bacteria, Archaea, Eukarya) proceeding from the Last

Universal Common Ancestor would show Archaea




a. as the original cells from which the others derived


b. branching off the domain Eukarya




Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 4/44

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