10 Questions
At what pH does the enzyme in the text reach its optimum activity?
pH 8
What happens to enzyme activity with a continued increase in pH beyond the optimum?
Enzyme activity decreases
Why does the rate of enzyme activity not increase forever with increasing substrate concentration?
Enzymes become saturated
What happens to enzyme activity when there are not enough enzyme molecules available to break down excess substrate molecules?
Activity decreases
What is the consequence of substrate molecules exceeding the capacity of available enzyme molecules?
Rate of reaction decreases
What happens to the rate of an enzyme-catalyzed reaction at high temperatures?
It decreases due to denaturation of the enzyme.
What effect does temperature have on enzyme activity according to the text?
It increases up to an optimum temperature and then decreases sharply.
How does pH affect the shape of an enzyme's active site?
It alters the shape of the active site.
What is the relationship between pH and rate of enzyme activity based on the text?
The rate of enzyme activity increases as pH increases.
What happens to the rate of an enzyme-catalyzed reaction beyond the optimum temperature?
It decreases due to denaturation of the enzyme.
Learn about the factors affecting the rate of an enzyme-catalysed reaction, including the impact of temperature, substrate concentration, and pH. Understand how temperature affects enzyme activity, and how extreme temperatures can denature enzymes.
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