Microbial Metabolism and Enzymology Quiz
Test your knowledge on microbial metabolism and enzymology with 14 questions covering ATP synthesis, glycolysis, enzyme kinetics, and more.
#1
Which enzyme catalyzes the conversion of glucose to pyruvate in glycolysis?
Hexokinase
Phosphofructokinase
Pyruvate kinase
Phosphoglucomutase
#2
Which of the following is a coenzyme derived from vitamin B3 (niacin)?
#3
Which of the following metabolic pathways occurs in the absence of oxygen?
Glycolysis
Krebs cycle
Electron transport chain
Pentose phosphate pathway
#4
Which of the following enzymes is responsible for DNA replication in bacteria?
DNA polymerase I
DNA ligase
Primase
RNA polymerase
#5
Which of the following metabolic processes occurs in the mitochondria?
Glycolysis
Krebs cycle
Fermentation
Pentose phosphate pathway
#6
Which of the following is NOT a primary mechanism for ATP synthesis in microbial metabolism?
Substrate-level phosphorylation
Oxidative phosphorylation
Glycolysis
Fermentation
#7
What is the function of RNA polymerase in microbial metabolism?
Synthesizes mRNA from DNA template
Catalyzes the conversion of ATP to cAMP
Converts pyruvate to acetyl-CoA
Catalyzes the breakdown of fatty acids
#8
In which compartment of the cell does the electron transport chain primarily occur in bacteria?
Cytoplasm
Mitochondria
Cell membrane
Golgi apparatus
#9
Which of the following is a characteristic of non-competitive inhibition?
Binds to the active site of the enzyme
Binds to a site other than the active site
Increases the maximum velocity of the reaction
Irreversibly inactivates the enzyme
#10
Which of the following is a product of the pentose phosphate pathway?
Glucose
Fructose
Ribose-5-phosphate
Pyruvate
#11
Which of the following is a characteristic of competitive inhibition?
Binds to the active site of the enzyme
Binds to a site other than the active site
Increases the maximum velocity of the reaction
Irreversibly inactivates the enzyme
#12
Which of the following is NOT a characteristic of an allosteric enzyme?
Binding of an effector molecule can modify its activity
It has multiple subunits
Its activity is not affected by the concentration of substrates
The effector molecule binds to an allosteric site
#13
Which of the following is a characteristic of irreversible inhibition?
Binds to the active site of the enzyme
Binds to a site other than the active site
Increases the maximum velocity of the reaction
Irreversibly inactivates the enzyme
#14
What is the function of ribonucleotide reductase in microbial metabolism?
Converts ribose to deoxyribose
Synthesizes RNA from DNA template
Catalyzes the breakdown of RNA
Converts glucose to pyruvate
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