Chemical Reactions and enzymes. When you bring two atoms together, what happens? Oxygen O2.

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Presentation transcript:

Chemical Reactions and enzymes

When you bring two atoms together, what happens? Oxygen O2

What process happened to create the oxygen molecule?

What if no reaction happens?

O2 +H2 = H2O Reactants Products Chemical equation

Rules Limited to the number of atoms you start with You can only rearrange to form new compounds Why is this true?

Enzymes- biological molecules

Inside your body are many chemical reactions happening all the time. Digestion Metabolism Cellular respiration Reproduction Growth And many more

Catalyst- a molecule that speeds up the rate of chemical reactions by lowering the activation energy Enzymes are catalysts Consider carbonic anhydrase CO2 + H2O = H2CO3 The enzyme speeds up the reaction by a factor of 10 million They complete their job by lowering the activation energy

Energy

How does it work?

Regulation of enzymes. Temperature pH Regulatory molecules