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Enzyme Catalysis and Specificity

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Questions and Answers

What is the primary function of lyases in enzyme catalysis?

To synthesize molecules using ATP
To add or remove water, ammonia or CO2 (correct)
To catalyze the inter-conversion of isomers
To break peptide bonds

Which of the following enzymes is an example of a ligase?

Pyruvate carboxylase (correct)
Fumarase
Decarboxylase
Aldolase

What is the primary function of isomerases in enzyme catalysis?

To break peptide bonds
To catalyze the inter-conversion of isomers (correct)
To add or remove water, ammonia or CO2
To synthesize molecules using ATP

What is the role of metal ions in metalloenzymes?

As a structural component of the enzyme (C) Signup and view all the answers

What is the difference between a simple protein and a conjugated protein?

Conjugated proteins require a non-protein component for activity (D) Signup and view all the answers

What is the role of ATP in ligase reactions?

To provide energy for the reaction (A) Signup and view all the answers

What is the function of decarboxylase?

To remove water or CO2 from a molecule (B) Signup and view all the answers

What is the role of Mg2+ in enzyme catalysis?

As a bridge between the enzyme and its substrate (A) Signup and view all the answers

What is the function of aldolase?

To cleave C-C or C-S bonds without using water (C) Signup and view all the answers

What is the primary function of enzymes in general?

To catalyze chemical reactions (C) Signup and view all the answers