Biochemistry

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Describe three general ways in which enzyme activity can be regulated.

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Enzyme activity can be regulated in many ways. Enzyme activity is dependent to a large extent on factors like pH, temperature, enzyme concentration, substrate concentration, salinity, etc.

  • One way of regulating enzyme activity is by controlling the temperature. Enzyme activity is usually increased at higher temperatures and decreases to almost zero as temperatures are reduced. The best rate of activity has a narrow temperature range.
  • Another way of changing enzyme activity is by altering the salinity and pH of the medium that the enzyme and the substrate is in.
  • Enzyme activity is also changed if the enzyme concentration itself or that of the substrate is increased. If there is enough substrate for the enzyme to act on increased activity is achieved by higher enzyme concentrates.
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