BIO250 - Straighterline Microbiology
Study Set Final Exam 2025/2026 Exam
Questions and Answers | 100% Solved
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
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
Study Set Final Exam 2025/2026 Exam
Questions and Answers | 100% Solved
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
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
