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  • I cannot wait to eat this sandwich!! I hope it taste good!!
  • Hey my name is pepsin the enzyme. You see that sandwich right there? Well I am about to go to work on that! You see an enzyme like me breaks down proteins and that sandwich is full of proteins!!
  • You see those shapes up there?? Well those are called substrates because the sandwich turns into substrates the reason why they turn into substrates is because of how I am working on the sandwich.
  • Substrate
  • Substrate
  • Every substrate has a different shape and so do enzymes but every substrate has an enzyme. Each substrate goes with an enzyme until the substrate is broken-down or the enzyme and substrate are combined with another molecule to make something new.
  • Substrate
  • Substrate
  • Enzyme
  • Do you see what is happening? This is called a catalysis , this is when a substrate is changed. The substrate is either broken-down or combined with an enzyme. This substrate is combining with an enzyme to create something new.  Notice how they fit perfectly this is called the lock and key method.
  • Substrate
  • Enzymes are like locks they cannot be open unless you have the exact key. Enzymes work this way because they complete very specific jobs and that specific job is the only thing they do. The key to an enzyme is a substrate but once the substrate is either broken down or mis shaped the Enzyme goes to other substrates. But this process can only be done in a specific area this area is called the active site.
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