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)
1
, 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
which of the following are theorized to be the ancestors of chloroplasts? -
ANSWER cyanobacteria
which eukaryotic microorganisms are photoautotrophs? - ANSWER algae
describe the genetic material that is contained within a virus. - ANSWER RNA or DNA,
not both
2
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)
1
, 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
which of the following are theorized to be the ancestors of chloroplasts? -
ANSWER cyanobacteria
which eukaryotic microorganisms are photoautotrophs? - ANSWER algae
describe the genetic material that is contained within a virus. - ANSWER RNA or DNA,
not both
2
