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20 December, 16:24

Which is a true statement about enzyme activity pH and enzyme action?

A. All enzymes work best at a neutral pH

B. Adding more acid does not affect the rate of activity of an enzyme

C. Enzymes function only in a pH range of 4.0 to 5.5

D. The activity of an enzyme is affected by pH

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Answers (1)
  1. 20 December, 19:33
    0
    answer must be D. A, B and C cannot be true as different enzymes have different optimum pH. For instance the enzyme pepsin in the stomach works best at pH 2, the enzyme trypsin works best at pH 8 while amylase works best at pH 7.
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Home » Biology » Which is a true statement about enzyme activity pH and enzyme action? A. All enzymes work best at a neutral pH B. Adding more acid does not affect the rate of activity of an enzyme C. Enzymes function only in a pH range of 4.0 to 5.5 D.
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