객관식
In the context of acids and bases, what is the role of a molecule that acts as a buffer?
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- 1. A Review of General Chemistry5h 6m
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3. Acids and Bases
Acids and Bases
객관식
Which of the following is true about enzyme activity and ?
A
Enzyme activity is highest at an optimal specific to each enzyme.
B
Enzyme activity decreases as approaches neutrality.
C
Enzyme activity is highest at extreme levels.
D
Enzyme activity is unaffected by changes in .
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검증된 단계별 안내1
Understand that enzymes are biological catalysts that speed up chemical reactions in living organisms. Their activity is influenced by various factors, including pH.
Recognize that each enzyme has an optimal pH range where it functions most effectively. This optimal pH is specific to each enzyme and is determined by the environment in which the enzyme naturally operates.
Consider that deviations from the optimal pH can lead to decreased enzyme activity. This is because changes in pH can affect the ionization of amino acids in the enzyme's active site, altering its shape and functionality.
Note that extreme pH levels can denature enzymes, causing them to lose their structure and functionality entirely. Therefore, enzyme activity is not highest at extreme pH levels.
Conclude that enzyme activity is indeed highest at an optimal pH specific to each enzyme, and it decreases as the pH moves away from this optimal range, whether towards neutrality or extreme values.
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