30 Questions
Which one of these is the correct equation for the reaction depicted in the image?
A + B -> AB
What is the enzyme class for the specific enzyme involved in the reaction depicted in the image?
Ligase
What is the specific enzyme involved in the reaction depicted in the image?
Epimerase
What physiological process uses the last 3 reactions described in the text?
Synthesis of heme
What molecule is added in the reaction catalyzed by the hydratase lyase?
Water
What is removed in the reaction catalyzed by the dehydratase lyase?
Water
What type of isomerase is involved in the reaction depicted in the image?
Epimerase
Which class of enzymes catalyzes redox reactions?
Oxidoreductases
What is the definition of a redox reaction?
A reaction that involves the transfer of electrons
Which of the following is true about redox reactions?
Loss of Electrons = Oxidation, Gain of Electrons = Reduction
In the Krebs cycle, which molecule is oxidized to make oxaloacetate?
Malate
In the Krebs cycle, which molecule is reduced to make malate?
Oxaloacetate
What are FAD/FADH2?
Coenzymes involved in redox reactions
What are NAD+/NADH?
Coenzymes involved in redox reactions
Which enzyme class is responsible for redox reactions?
Oxidoreductase
Which enzyme class is responsible for hydrolysis reactions?
Hydrolase
Which enzyme class is responsible for group transfer reactions?
Transferase
Which enzyme class is responsible for condensation reactions?
Lyase
Which enzyme class is responsible for decarboxylation/elimination reactions?
Lyase
Which enzyme class is responsible for dehydration/elimination reactions?
Lyase
Which enzyme class is responsible for hydration/addition reactions?
Lyase
Which enzyme class is responsible for isomerization reactions?
Lyase
Which enzyme class is responsible for joining molecules with the use of ATP?
Lyase
Which one of these is true about nucleophilic substitution reactions?
The electrophile is a group that will be substituted for by the leaving group.
Which one of these is true about disaccharide formation?
The leaving group is an atom with a lone electron pair.
Which one of these correctly identifies the nucleophile, electrophile, and leaving group in DNA formation?
Nucleophile: atom with a lone electron pair, Electrophile: electron deficient atom, Leaving group: group that will be substituted for
Which one of these correctly identifies the nucleophile and electrophile in the formation of triglycerides?
Nucleophile: atom with a lone electron pair, Electrophile: electron deficient atom
Which one of these correctly identifies the nucleophile in peptide bond formation?
Nitrogen atom
Which one of these correctly identifies the leaving group in the reaction shown in the image?
Water molecule
Which one of these is true about hydrolase enzymes?
They break apart molecules using water as a nucleophile.
Test your knowledge on biochemistry enzyme reactions with this quiz. Identify the correct equation, enzyme class, specific enzyme, physiological process, and molecules involved in the depicted reactions.
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