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Questions and Answers
What is the primary role of enzymes in metabolic reactions?
What is the primary role of enzymes in metabolic reactions?
What is the optimum temperature for enzymes in the human body?
What is the optimum temperature for enzymes in the human body?
Which factor primarily influences the frequency of collisions between enzyme and substrate molecules?
Which factor primarily influences the frequency of collisions between enzyme and substrate molecules?
What does raising the concentration of a substrate typically do in enzyme-catalyzed reactions?
What does raising the concentration of a substrate typically do in enzyme-catalyzed reactions?
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Extracellular enzymes primarily function in which part of the body?
Extracellular enzymes primarily function in which part of the body?
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Study Notes
Enzymes: Controlling Reactions in Cells
- Enzymes are proteins that catalyze reactions in cells
- Enzymes are biological catalysts, speeding up reactions without being consumed
- Cells contain many different enzymes, each catalyzing a specific reaction
- Enzymes' function is controlled by genes in the nucleus
- Reactions occur quickly enough in organisms at low temperatures only due to enzymes
- Thousands of different enzymes exist due to various protein structures
Factors Affecting Enzymes
- Temperature: Enzymes function optimally at a specific temperature, often close to body temperature
- Higher temps increase kinetic energy and collisions between substrate and enzyme, thus increasing reactions
- Temperatures beyond optimal greatly reduce reaction rates
- pH: pH levels influence reaction rates, optimums also exist for enzymes
- Enzyme activity is affected by substrate and enzyme concentrations
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Description
This quiz explores the role of enzymes as biological catalysts in cellular reactions. It covers factors influencing enzyme activity, including temperature and pH, as well as the genetic control of enzyme functions. Test your understanding of these crucial proteins and their importance in biological processes.
