18 Questions
What is the symbolic representation of converting a substrate into a product by enzymes?
S → P
Where does the substrate need to bind to the enzyme for the reaction to occur?
Within the enzyme's active site
What is formed when a substrate binds to the enzyme's active site?
'ES' complex
Which term describes the new structure of the substrate when it is bound to the enzyme's active site?
Transition state structure
What is the role of enzymes in lowering the activation energy of a reaction?
Stabilizing the transition state structure
Which term describes the unstable structural states between the stable substrate and product in an enzymatic reaction?
'Altered structural states'
What is the role of enzymes in reducing the activation energy?
Lowering the activation energy
Why is the formation of enzyme-substrate complex (ES) essential for catalysis?
To facilitate catalysis
What is the function of the active site in an enzyme?
Facilitate substrate binding and catalysis
How do enzymes differ from inorganic catalysts in terms of specificity?
Enzymes are more specific than inorganic catalysts
Which molecule is short-lived and dissociates into product(s) and the unchanged enzyme during enzyme action?
Enzyme-substrate complex (ES)
What is the term used to describe the difference in average energy content between 'S' and the transition state in an enzyme-catalyzed reaction?
'Activation energy'
What is the primary structure of an enzyme like?
Amino acid sequence
What is an active site of an enzyme?
A crevice or pocket where the substrate fits
What is a major difference between enzyme catalysts and inorganic catalysts?
Inorganic catalysts work efficiently at high temperatures
What is one important quality of enzymes isolated from thermophilic organisms?
Thermal stability even at high temperatures
What are ribozymes?
Enzymes with RNA as their catalytic subunit
How do enzymes differ from inorganic catalysts with respect to temperature?
Enzymes get damaged at high temperatures
Explore the process of substrate conversion by enzymes with three-dimensional structures and active sites. Learn about the formation of the enzyme-substrate complex and the transient nature of this interaction.
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