MICROBIOLOGY Exam Questions with 100% Correct Answers
Latest Graded A+
Question:
Which statement concerning fermentation is FALSE? Ethanol and lactic acid are possible
endproducts. Fermentation is a method of producing ATP in the presence of oxygen. In
fermentation, the final electron acceptor is an organic molecule. NADH is oxidized. Fermentation
is an anaerobic process
Answer:
Fermentation is a method of producing ATP in the presence of oxygen.
Match the carbon and energy produced/used in aerobic respiration with the microbial metabolic
pathway in which it occurs. That is, follow the CARBON and ENERGY. (You may use each
answer more than one time.)
Requires two (2) molecules of ATP as activation energy per molecule of glucose.
Produces two (2) molecules of ATP and four (4) molecules of CO2 per molecule of glucose.
Produces 34 molecules of ATP per molecule of glucose.
Oxidizes 10 molecules of NADH to NAD+ per molecule of glucose.
Produces six (6) molecules of reduced NADH and two (2) molecules of reduced FADH2 per
molecule of glucose.
Oxidizes two (2) molecules of FADH2 to FAD+ per molecule of glucose.
Produces a total of four (4) molecules of ATP (two NET) and two molecules of NADH per
molecule of glucose.
Produces NO ATP, but two (2) molecules of reduced NADH and two molecules of CO2 per
molecule of glucose.
Question:
A. Electron Transport S
Answer:
Requires two (2) molecules of ATP as activation energy per molecule of glucose.
[Glycolysis (Embden-Meyerhoff Pathway)]
,Produces two (2) molecules of ATP and four (4) molecules of CO2 per molecule of glucose.
[Kreb's Cycle (Tricarboxylic Acid Cycle)]
Produces 34 molecules of ATP per molecule of glucose. [Electron Transport System]
Oxidizes 10 molecules of NADH to NAD+ per molecule of glucose. [B. Electron Transport
System]
Produces six (6) molecules of reduced NADH and two (2) molecules of reduced FADH2 per
molecule of glucose. [Kreb's Cycle (Tricarboxylic Acid Cycle)]
Oxidizes two (2) molecules of FADH2 to FAD+ per molecule of glucose.[Electron Transport
System]
Produces a total of four (4) molecules of ATP (two NET) and two molecules of NADH per
molecule of glucose. [Glycolysis (Embden-Meyerhoff Pathway)]
Produces NO ATP, but two (2) molecules of reduced NADH and two molecules of CO2 per
molecule of glucose. [D. Decarboxylation (Transition Step)]
Question:
The monomer of a nucleic acid is called a(n) .
Answer:
nucleotide
All of the following are aspects of a cell's ability to regulate its metabolism EXCEPT:
isolation of various enzymes within membranous organelles.
synthesis of a catabolic enzyme only when its substrate is available.
synthesis or degradation of membrane transport proteins.
using the same coenzymes for anabolic and catabolic reactions that share substrate molecules.
Question:
using the most energy-efficient energy source available.
Answer:
using the same coenzymes for anabolic and catabolic reactions that share substrate molecules.
DNA helicases
synthesize short DNA molecules important for the function of DNA polymerase.
,assist in recognition of promoters during transcription.
seal gaps between DNA fragments.
break hydrogen bonds between complementary nucleotides.
Question:
proofread DNA molecules.
Answer:
break hydrogen bonds between complementary nucleotides.
All of the following are true statements of plasmids EXCEPT:
They can be found in bacteria, fungi, and protozoa.
They can replicate autonomously.
They can carry genes that confer resistance against antibiotics.
They are small circular molecules of DNA.
Question:
They carry genes that are required for growth and repair.
Answer:
They carry genes that are required for growth and repair.
Question:
dATP and dCTP are examples of , the building blocks of DNA molecules.
Answer:
Triphosphate deoxyribonucleotides
Question:
Which of the following is the strongest base pair? adenine-thymine guanine-cytosine adenine-uracil
Both B and C are correct. Both A and B are correct.
Answer:
guanine-cytosine
Question:
, Which of the following are considered to be frameshift mutations? insertions inversions deletions
Both A and B are correct. Both A and C are correct.
Answer:
Both A and C are correct.
Oncogenes are genes that
encourage recombinations in bacteria
transform normal cells to cancer cells
Question:
the virus uses to replicate itself influence ongoing protein production
Answer:
transform normal cells to cancer cells
Question:
The genome of which of the following types of animal virus can act directly as mRNA? dsDNA
viruses ssDNA viruses -ssRNA viruses retroviruses +ssRNA viruses
Answer:
+ssRNA viruses
Question:
A prophage is another name for a bacteriophage viral DNA integrated into the bacterial
chromosome a virulent phage that undergoes a lytic cycle a plasmid consisting of viral DNA
Answer:
viral DNA integrated into the bacterial chromosome.
Cellular organelles and viruses are generally measured in
millimeters.
centimeters.
nanometers.
decimeters.
Question:
Latest Graded A+
Question:
Which statement concerning fermentation is FALSE? Ethanol and lactic acid are possible
endproducts. Fermentation is a method of producing ATP in the presence of oxygen. In
fermentation, the final electron acceptor is an organic molecule. NADH is oxidized. Fermentation
is an anaerobic process
Answer:
Fermentation is a method of producing ATP in the presence of oxygen.
Match the carbon and energy produced/used in aerobic respiration with the microbial metabolic
pathway in which it occurs. That is, follow the CARBON and ENERGY. (You may use each
answer more than one time.)
Requires two (2) molecules of ATP as activation energy per molecule of glucose.
Produces two (2) molecules of ATP and four (4) molecules of CO2 per molecule of glucose.
Produces 34 molecules of ATP per molecule of glucose.
Oxidizes 10 molecules of NADH to NAD+ per molecule of glucose.
Produces six (6) molecules of reduced NADH and two (2) molecules of reduced FADH2 per
molecule of glucose.
Oxidizes two (2) molecules of FADH2 to FAD+ per molecule of glucose.
Produces a total of four (4) molecules of ATP (two NET) and two molecules of NADH per
molecule of glucose.
Produces NO ATP, but two (2) molecules of reduced NADH and two molecules of CO2 per
molecule of glucose.
Question:
A. Electron Transport S
Answer:
Requires two (2) molecules of ATP as activation energy per molecule of glucose.
[Glycolysis (Embden-Meyerhoff Pathway)]
,Produces two (2) molecules of ATP and four (4) molecules of CO2 per molecule of glucose.
[Kreb's Cycle (Tricarboxylic Acid Cycle)]
Produces 34 molecules of ATP per molecule of glucose. [Electron Transport System]
Oxidizes 10 molecules of NADH to NAD+ per molecule of glucose. [B. Electron Transport
System]
Produces six (6) molecules of reduced NADH and two (2) molecules of reduced FADH2 per
molecule of glucose. [Kreb's Cycle (Tricarboxylic Acid Cycle)]
Oxidizes two (2) molecules of FADH2 to FAD+ per molecule of glucose.[Electron Transport
System]
Produces a total of four (4) molecules of ATP (two NET) and two molecules of NADH per
molecule of glucose. [Glycolysis (Embden-Meyerhoff Pathway)]
Produces NO ATP, but two (2) molecules of reduced NADH and two molecules of CO2 per
molecule of glucose. [D. Decarboxylation (Transition Step)]
Question:
The monomer of a nucleic acid is called a(n) .
Answer:
nucleotide
All of the following are aspects of a cell's ability to regulate its metabolism EXCEPT:
isolation of various enzymes within membranous organelles.
synthesis of a catabolic enzyme only when its substrate is available.
synthesis or degradation of membrane transport proteins.
using the same coenzymes for anabolic and catabolic reactions that share substrate molecules.
Question:
using the most energy-efficient energy source available.
Answer:
using the same coenzymes for anabolic and catabolic reactions that share substrate molecules.
DNA helicases
synthesize short DNA molecules important for the function of DNA polymerase.
,assist in recognition of promoters during transcription.
seal gaps between DNA fragments.
break hydrogen bonds between complementary nucleotides.
Question:
proofread DNA molecules.
Answer:
break hydrogen bonds between complementary nucleotides.
All of the following are true statements of plasmids EXCEPT:
They can be found in bacteria, fungi, and protozoa.
They can replicate autonomously.
They can carry genes that confer resistance against antibiotics.
They are small circular molecules of DNA.
Question:
They carry genes that are required for growth and repair.
Answer:
They carry genes that are required for growth and repair.
Question:
dATP and dCTP are examples of , the building blocks of DNA molecules.
Answer:
Triphosphate deoxyribonucleotides
Question:
Which of the following is the strongest base pair? adenine-thymine guanine-cytosine adenine-uracil
Both B and C are correct. Both A and B are correct.
Answer:
guanine-cytosine
Question:
, Which of the following are considered to be frameshift mutations? insertions inversions deletions
Both A and B are correct. Both A and C are correct.
Answer:
Both A and C are correct.
Oncogenes are genes that
encourage recombinations in bacteria
transform normal cells to cancer cells
Question:
the virus uses to replicate itself influence ongoing protein production
Answer:
transform normal cells to cancer cells
Question:
The genome of which of the following types of animal virus can act directly as mRNA? dsDNA
viruses ssDNA viruses -ssRNA viruses retroviruses +ssRNA viruses
Answer:
+ssRNA viruses
Question:
A prophage is another name for a bacteriophage viral DNA integrated into the bacterial
chromosome a virulent phage that undergoes a lytic cycle a plasmid consisting of viral DNA
Answer:
viral DNA integrated into the bacterial chromosome.
Cellular organelles and viruses are generally measured in
millimeters.
centimeters.
nanometers.
decimeters.
Question:
