BI-47
Effect of temperature and pH on enzymes
Biology · Secondary 3 · Hard · Effect of temperature and pH on enzymes
A student investigates the effect of pH on amylase. At pH 7, all the starch is digested in 40 s. At pH 4, all the starch is digested in 160 s. Which statement about the rate of reaction is correct?
- The rate at pH 7 is four times the rate at pH 4.
- The rate at pH 7 is the same as the rate at pH 4.
- The rate at pH 7 is half the rate at pH 4.
- The rate at pH 7 is one quarter of the rate at pH 4.
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