Podcast
Questions and Answers
What is the main reason an active site is compatible with its substrate?
What is the main reason an active site is compatible with its substrate?
- It is composed of amino acids
- It has a shape compatible with the substrate (correct)
- The active site participates in making and breaking bonds
- The catalytic groups donate or accept electrons
Which residues are directly involved in the making and breaking of bonds within the substrate?
Which residues are directly involved in the making and breaking of bonds within the substrate?
- Positive modulators
- Catalytic groups (correct)
- Allosteric groups
- Negative modulators
What happens to the catalytic groups after the catalysis is complete?
What happens to the catalytic groups after the catalysis is complete?
- They go back to their original state (correct)
- They transform into allosteric groups
- They disintegrate
- They remain changed
In allosteric modulation, what effect does a positive modulator have on enzyme activity?
In allosteric modulation, what effect does a positive modulator have on enzyme activity?
What type of enzyme has the same active site and allosteric site?
What type of enzyme has the same active site and allosteric site?
In feedback inhibition, which component inhibits the regulatory enzyme?
In feedback inhibition, which component inhibits the regulatory enzyme?
What is the main function of an enzyme?
What is the main function of an enzyme?
Which of the following is a characteristic of enzymes?
Which of the following is a characteristic of enzymes?
What does it mean when it is said that enzymes are stereospecific?
What does it mean when it is said that enzymes are stereospecific?
What type of regulation involves the inhibition of an enzyme by the end product of a reaction?
What type of regulation involves the inhibition of an enzyme by the end product of a reaction?
Which part of the enzyme is responsible for substrate binding and catalysis?
Which part of the enzyme is responsible for substrate binding and catalysis?
In enzyme activity, which mechanism involves the addition of groups like phosphoryl and adenylyl to specific amino acids of proteins to make the enzyme more active?
In enzyme activity, which mechanism involves the addition of groups like phosphoryl and adenylyl to specific amino acids of proteins to make the enzyme more active?
What is the term for an inactive enzyme precursor that is activated through proteolytic cleavage by a separate enzyme?
What is the term for an inactive enzyme precursor that is activated through proteolytic cleavage by a separate enzyme?
What is the function of a cofactor in enzyme activity?
What is the function of a cofactor in enzyme activity?
Why is it important for enzymes to be highly specific in substrate recognition?
Why is it important for enzymes to be highly specific in substrate recognition?
Which part of an enzyme is responsible for interacting with the substrate to catalyze a reaction?
Which part of an enzyme is responsible for interacting with the substrate to catalyze a reaction?
What is the term for the process where some enzymes are produced as inactive precursors and activated through cleavage by proteolytic enzymes to regulate their activity?
What is the term for the process where some enzymes are produced as inactive precursors and activated through cleavage by proteolytic enzymes to regulate their activity?
What type of regulation involves altering enzyme activity through the binding of molecules at a site other than the active site?
What type of regulation involves altering enzyme activity through the binding of molecules at a site other than the active site?
