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Questions and Answers
What is the primary role of enzymes in living organisms?
What is the primary role of enzymes in living organisms?
- To transport molecules across cell membranes.
- To store genetic information.
- To provide structural support to cells.
- To act as biological catalysts. (correct)
What happens to an enzyme if the temperature exceeds its optimum?
What happens to an enzyme if the temperature exceeds its optimum?
- It becomes more efficient.
- It is converted to a different protein.
- It starts replicating at a faster rate.
- It becomes denatured. (correct)
Which of the following best describes the specificity of enzymes?
Which of the following best describes the specificity of enzymes?
- Each enzyme is specific to a particular reaction with matching substrates. (correct)
- Enzymes are specific to a particular type of cell.
- Enzymes can catalyze any reaction.
- Enzymes only function at low temperatures.
What is the consequence of an enzyme's active site losing its shape?
What is the consequence of an enzyme's active site losing its shape?
What does it mean that enzymes are reusable?
What does it mean that enzymes are reusable?
Flashcards
Enzymes
Enzymes
Special proteins that speed up chemical reactions in living things.
Optimum Temperature
Optimum Temperature
The ideal temperature at which an enzyme works best.
Enzyme Denaturation
Enzyme Denaturation
When an enzyme loses its shape and stops working correctly.
Enzyme pH
Enzyme pH
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Reusable Enzymes
Reusable Enzymes
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Study Notes
Enzymes
- Enzymes are proteins that act as catalysts in living organisms.
- Enzyme activity is influenced by temperature.
- Optimum temperature for many enzymes is 40°C.
- Temperatures above or below the optimum can denature enzymes, altering their active site shape.
- Enzyme activity is also affected by pH levels.
- Enzymes are specific to particular reactions, meaning a specific substrate must fit into their active site for a reaction to occur.
- Enzymes are reusable.
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