When asked to explain the activation of a protein-digesting enzyme, the student wrote the following. What they were supposed to write was something along the lines of, the enzyme is only activated in the duodenum as the pancreas doens't have any mechanisms in place to prevent self-digestion, and thus it produces the enzymes in an inactive form. This is what they actually wrote...
"…This is to ensure that it does not react with the other substance that it should not react with as prevention of self destruction."
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