Hello who’s good at biology guys I need someone to help me with the test

What is one function of the embedded proteins

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?