Multiple Choice
Each enzyme only has one specific substrate that will fit its active site. What is this concept called?
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6. Enzymes and Enzyme Kinetics
Enzyme-Substrate Complex
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What is the name for the part of the enzyme where substrates bind?
A
Active site
B
Allosteric site
C
Cofactor site
D
Regulatory domain
Verified step by step guidance1
Understand the role of enzymes in biochemical reactions: Enzymes are biological catalysts that speed up reactions by lowering the activation energy required for the process.
Learn about the structure of enzymes: Enzymes have specific regions that interact with substrates, cofactors, or regulatory molecules. These regions are crucial for their function.
Define the active site: The active site is the specific region of the enzyme where substrates bind and undergo a chemical reaction. It is highly specific to the substrate's shape and chemical properties.
Differentiate between the active site and other regions: The allosteric site is a separate region where molecules bind to regulate enzyme activity, while the cofactor site is where non-protein molecules or ions bind to assist enzyme function. The regulatory domain is a broader term that may include regions controlling enzyme activity.
Conclude that the correct answer is 'Active site,' as it is the part of the enzyme where substrates bind and the reaction occurs.
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