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Enzymes - Unit 3 honors bio

  1. Enzymes 

    1. Proteins 

    2. Denaturation is when an enzyme loses shape. Caused by heat and pH levels 

    3. Lock and key model : how perfectly the enzyme (key) fits into the substrate (lock) 

    4. Inhibitor : a molecule that prevents another molecule from an ongoing reaction 

      1. Competitive : binds to active site and prevents the substrate from binding 

      2. Noncompetitive : Binds to a different site. Substrate binds but it causes other changes in the reaction 

    5. Coenzymes: capture, transfer, and move energy around the cell 

      1. Ex: ATP, GTP, NADH, FADH2, and NADPH 

    6. Cofactor:  non-protein chemical compound that tightly and loosely binds with an enzyme or other protein molecules