OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How do enzymes and substrates interact?
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Are enzyme catalyzed reactions reversible?
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A. What is the optimum pH of the enzyme being tested?
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How does temperature impact enzyme function?
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Detailed explanation-1: -pH: Each enzyme has an optimum pH range. Changing the pH outside of this range will slow enzyme activity. Extreme pH values can cause enzymes to denature.
Detailed explanation-2: -Enzymes will work best if there is plenty of substrate. As the concentration of the substrate increases, so does the rate of enzyme activity. However, the rate of enzyme activity does not increase forever.
Detailed explanation-3: -Changes in substrate concentration do not cause the enzyme to denature, but changes in temp & pH may cause enzyme to denature.
Detailed explanation-4: -Higher temperature generally causes more collisions among the molecules and therefore increases the rate of a reaction. More collisions increase the likelihood that substrate will collide with the active site of the enzyme, thus increasing the rate of an enzyme-catalyzed reaction.