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A-Level Biology OCR A

Examples Inactive Precursor Give Enzymes Describe Activated Pepsinogen

Front Give 2 examples of inactive precursor enzymes and describe how they are activated.
Back Examples of inactive precursor enzymes:
  • Pepsinogen becomes pepsin when exposed to stomach acid bc the low pH brings about the transformation
  • Trypsinogen becomes trypsin when cleaved into active form by enteropeptidase

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