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Questions and Answers
What is the function of enzymes in biological systems?
At what pH and temperature do enzymes typically operate in the body?
What is the role of the active site in enzymes?
Which classification of enzymes is responsible for catalyzing redox reactions?
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What effect do enzymes have on the activation energy (Ea) of a reaction?
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Study Notes
Enzymes in Biological Systems
- Enzymes are biological molecules, typically proteins, that speed up chemical reactions in living organisms.
- They act as catalysts, increasing the rates of reactions without being consumed or altered in the process.
Enzyme Optimum Conditions
- Enzymes typically operate at a pH range of 6-8 and temperature of 37°C (98.6°F) in the human body.
Active Site of Enzymes
- The active site is a specific region on the enzyme surface that binds to the substrate, positioning it for catalysis.
- The active site is shaped to fit the substrate, ensuring efficient binding and orienting the substrate for reaction.
Classification of Enzymes
- Oxidoreductases are a class of enzymes responsible for catalyzing redox reactions, which involve the transfer of electrons.
Enzymes and Activation Energy
- Enzymes lower the activation energy (Ea) required for a reaction to occur, allowing the reaction to proceed faster and more efficiently.
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Description
Test your knowledge of enzyme catalysis with this quiz covering biological catalysts, enzyme-substrate interaction, factors affecting enzyme activity, regulation, cofactors and coenzymes, and examples of enzyme catalytic reactions.
