What do enzymes have to do with soft-drinks? - PowerPoint PPT Presentation

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What do enzymes have to do with soft-drinks?

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What do enzymes have to do with soft-drinks? – PowerPoint PPT presentation

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Title: What do enzymes have to do with soft-drinks?


1
What do enzymes have to do with soft-drinks?
2
Chemical ReactionsEnzymes
Objectives B3 - Identify the parts of a chemical
reaction. B4 - Identify investigate the role of
enzymes and summarize the importance of enzymes
in living systems
3
Homeostasis
  • - process by which organisms maintain a stable
    internal environment

Examples - Heart speeds up accommodate the
need of oxygen when exercising -
Sweat to keep cool - Shiver to help keep
warm - Buffering system maintains the blood
pH 7.4
4
Chemical Reactions
  • - always involve the breaking of bonds in
    reactants the formation of new bonds in products

5
Enzymes
  • proteins that act as biological catalysts
  • speed up (or catalyze)
    chemical reactions
  • lower activation energies

6
Enzymes
  • reversible
  • are used over and over
  • (are not changed by the reaction)
  • most work best at body temperature normal pH

7
Enzymes
  • Specific lock key hypothesis
  • Usually end in ase

8
Starch
Amylase Glucoamylase
Glucose isomerase
9
Etymology
  • Homeostsis homeo- (same) -stasis (Gk. STASIS,
    a standstill)
  • Enzyme en- (Gk. EN-, in) -zyme (ZUME, leaven
    something that modifies)
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