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BIO250 - Straighterline microbiology study set Final exam Questions and Answers 100% Pass
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BIO250 - Straighterline microbiology study set Final exam Questions and Answers 100% Pass What microbial process was responsible for changing earths atmosphere from one without oxygen to one with oxygen? - ANSWER-Oxygenic photosynthesis In the nitrogen cycle, which of the following phases invo...

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  • November 18, 2024
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  • 2024/2025
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BIO250 - Straighterline microbiology
study set Final exam Questions and
Answers 100% Pass

What microbial process was responsible for changing earths atmosphere from one

without oxygen to one with oxygen? - ANSWER✔✔-Oxygenic photosynthesis


In the nitrogen cycle, which of the following phases involves the release of nitrogen as

N2? - ANSWER✔✔-Denitrification


In the secondary phase of wastewater treatment, why is air injected into the sludge as it

is stirred and recirculated? - ANSWER✔✔-The bioremediators need oxygen


Which of the following microorganisms is used to make yogurt? - ANSWER✔✔-

Lactobacillus bulgaricus


ATP is a - ANSWER✔✔-Nucleotide that releases and stores energy in the cell


A viral capsid is composed of - ANSWER✔✔-proteins


which of these are NOT considered a living organism? - ANSWER✔✔-Viruses




Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 1/7

, which of the following describes the order in which different types of RNA are involved

in translation? - ANSWER✔✔-Messenger RNA (mRNA), transfer RNA (tRNA),

Ribosomal RNA (rRNA)


what is the bacterial identification technique that, when positive, results in the

bacterium staining two contrasting colors? - ANSWER✔✔-Gram staining


Which of the following is found In some, but not all groups of eukaryotic

microorganisms? - ANSWER✔✔-cell wall


In which instance would a researcher need to use Bergey's manual of systemic

bacteriology instead of Bergey's manual of determinative bacteriology? - ANSWER✔✔-

to investigate genetic history of bacterial species


which of the following structures is found in gram-negative bacteria but is absent from

gram-positive bacteria? - ANSWER✔✔-outer lipid membrane


which type of archaea is able to survive in extremely high concentrations of salt? -

ANSWER✔✔-halophiles


which of the following is true of prokaryotes, but not true of eukaryotes? -

ANSWER✔✔-they have cell walls made of peptidoglycan


which of the following is the role of ribosomes? - ANSWER✔✔-provide a site for

protein synthesis




Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 2/7

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