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Questions and Answers
Which type of enzyme catalyzes redox reactions?
Which type of enzyme catalyzes redox reactions?
- Lyases
- Hydrolases
- Transferases
- Oxidoreductases (correct)
What is the function of amylase?
What is the function of amylase?
- Catalyzes oxidation
- Digests starch (correct)
- Transfers functional groups
- Catalyzes hydrolysis
Which enzyme catalyzes the digestion of lactose?
Which enzyme catalyzes the digestion of lactose?
- Lipase
- Oxidase
- Lactase (correct)
- Pepsin
What is the main function of transferases?
What is the main function of transferases?
Which subclass of isomerases involves the alteration of the spatial arrangement of atoms in a molecule?
Which subclass of isomerases involves the alteration of the spatial arrangement of atoms in a molecule?
What is the function of ligases in terms of molecule combination?
What is the function of ligases in terms of molecule combination?
What is the main characteristic of enzymes as catalysts?
What is the main characteristic of enzymes as catalysts?
What is the role of cofactors in enzyme structure?
What is the role of cofactors in enzyme structure?
How do enzymes increase reaction rates?
How do enzymes increase reaction rates?
'Lock-and-Key' model proposed by Emil Fischer implies that:
'Lock-and-Key' model proposed by Emil Fischer implies that:
What is the main function of induced-fit model in enzyme-substrate interaction?
What is the main function of induced-fit model in enzyme-substrate interaction?
What does acid/base catalysis involve?
What does acid/base catalysis involve?
What is demonstrated in the reaction between an ester and carboxylate group?
What is demonstrated in the reaction between an ester and carboxylate group?
What does metal ion catalysis involve?
What does metal ion catalysis involve?
What does binding energy (GB) facilitate in enzyme-substrate interaction?
What does binding energy (GB) facilitate in enzyme-substrate interaction?
Enzymes can alter the equilibrium constant of a reaction.
Enzymes can alter the equilibrium constant of a reaction.
Ligases are a subclass of isomerases.
Ligases are a subclass of isomerases.
Enzymes are not highly regulated and their rate of activity cannot adjust to the condition of the cell.
Enzymes are not highly regulated and their rate of activity cannot adjust to the condition of the cell.
Enzymes are not highly specific and do not selectively recognize proper substrate over other molecules.
Enzymes are not highly specific and do not selectively recognize proper substrate over other molecules.
All enzymes are made up of simple proteins only.
All enzymes are made up of simple proteins only.
Prosthetic groups are not required for the biological function of enzymes.
Prosthetic groups are not required for the biological function of enzymes.
Enzymes increase reaction rate by increasing the activation energy.
Enzymes increase reaction rate by increasing the activation energy.
The lock-and-key model implies that the enzyme and the substrate interact by means of short-range forces that require close contact.
The lock-and-key model implies that the enzyme and the substrate interact by means of short-range forces that require close contact.
The induced-fit model states that enzymes are inflexible and the shapes of active sites cannot be modified by binding with a substrate.
The induced-fit model states that enzymes are inflexible and the shapes of active sites cannot be modified by binding with a substrate.
Entropy reduction is not demonstrated in the reaction between an ester and carboxylate group.
Entropy reduction is not demonstrated in the reaction between an ester and carboxylate group.
Acid/base catalysis does not involve proton transfer in biochemical reactions.
Acid/base catalysis does not involve proton transfer in biochemical reactions.
Metal ion catalysis does not involve the orientation of the substrate for the reaction or stabilization of charged transition states.
Metal ion catalysis does not involve the orientation of the substrate for the reaction or stabilization of charged transition states.
Enzymes are biological catalysts that increase the rate of reaction by factors more than a million times without being used up.
Enzymes are biological catalysts that increase the rate of reaction by factors more than a million times without being used up.
Enzymes lower the activation energy by providing an alternate pathway for chemical reactions.
Enzymes lower the activation energy by providing an alternate pathway for chemical reactions.
Enzymes measure the amount of product formed per unit time to determine reaction rates.
Enzymes measure the amount of product formed per unit time to determine reaction rates.
Enzyme names ending in -ase always identify the reacting substance.
Enzyme names ending in -ase always identify the reacting substance.
Enzyme names ending in -ase always describe the function of the enzyme.
Enzyme names ending in -ase always describe the function of the enzyme.
Common names of digestion enzymes often end in -in.
Common names of digestion enzymes often end in -in.
Oxidoreductases catalyze redox reactions and have subclasses such as oxidases and dehydrogenases.
Oxidoreductases catalyze redox reactions and have subclasses such as oxidases and dehydrogenases.
Transferases involve the transfer of functional groups between two substrates.
Transferases involve the transfer of functional groups between two substrates.
Hydrolases catalyze hydrolysis or addition of water.
Hydrolases catalyze hydrolysis or addition of water.
Lyases remove atoms to form a double bond or add atoms to a double bond.
Lyases remove atoms to form a double bond or add atoms to a double bond.
In enzyme nomenclature, the name 'pepsin' identifies an enzyme that digests starch.
In enzyme nomenclature, the name 'pepsin' identifies an enzyme that digests starch.
In enzyme classification, lipases belong to the subclass of lyases.
In enzyme classification, lipases belong to the subclass of lyases.
Match the enzyme classification with its description:
Match the enzyme classification with its description:
Match the enzyme nomenclature with its example:
Match the enzyme nomenclature with its example:
Match the enzyme common names with their function:
Match the enzyme common names with their function:
Match the subclass of lyases with its function:
Match the subclass of lyases with its function:
Match the subclass of isomerases with their primary function:
Match the subclass of isomerases with their primary function:
Match the enzyme property with its characteristic:
Match the enzyme property with its characteristic:
Match the enzyme structure component with its description:
Match the enzyme structure component with its description:
Match the model of enzyme-substrate interaction with its description:
Match the model of enzyme-substrate interaction with its description:
Match the way enzymes act on substrates with their description:
Match the way enzymes act on substrates with their description:
Match the enzyme classification with its primary function:
Match the enzyme classification with its primary function:
