what are enzymes? proteins, with complex 3-d shapes have an active site which can bind a substrate...

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Help Chemical Reactions Occur Notice the enzyme is not used up in the reaction! Only a certain substrate will fit in the active site

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What Are Enzymes?Proteins, with complex 3-d shapes

Have an active site which can bind a substrate (reactants)

Help Chemical Reactions Occur

Notice the enzyme is not used up in the reaction!

Only a certain substrate will fit in the active site

Page 4: What Are Enzymes? Proteins, with complex 3-d shapes Have an active site which can bind a substrate (reactants)

How?Allows bonds in substrate to be

broken more easily, with less input of energy

Page 5: What Are Enzymes? Proteins, with complex 3-d shapes Have an active site which can bind a substrate (reactants)

Another Example

Page 6: What Are Enzymes? Proteins, with complex 3-d shapes Have an active site which can bind a substrate (reactants)

Reaction Energy Diagrams

Activation Energy

Page 7: What Are Enzymes? Proteins, with complex 3-d shapes Have an active site which can bind a substrate (reactants)

Activation EnergyInput of energy required to break

initial bonds and begin the reactionEven if reaction will release energy

Page 8: What Are Enzymes? Proteins, with complex 3-d shapes Have an active site which can bind a substrate (reactants)

Enzymes Lower EaMake the transition state easier to

reach

Page 9: What Are Enzymes? Proteins, with complex 3-d shapes Have an active site which can bind a substrate (reactants)

Endergonic vs. Exergonic

Page 10: What Are Enzymes? Proteins, with complex 3-d shapes Have an active site which can bind a substrate (reactants)

Specificity of Active Sites

Enzymes only catalyze substrates with a complementary shape

Any changes to the shape of the enzyme will disable the activity of the active site

Stoichiometry Calculating Reactants and Products

Scanned by CamScanner · 8/7/2018 · antimetabolites, antivitamins, and drugs . Non-competitive inhibitors can bind to the enzyme at the same time as the substrate Non-competitive

Active sites Enzyme Enzymes are Proteins that act as Biological Catalyst A B C D Enzyme/Substrate Complex Enzyme + Products Substrates are the reactants

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Introduction Enzymes are usually proteins that act as catalysts, compounds that increase the rate of chemical reactions. They bind specifically to a substrate,

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Limiting Reactants

2 Enzymes 2005-9-23. The Hill equation describes the behavior of enzymes that exhibit cooperative binding of substrate 1. some enzymes bind their substrates

Discover Math and Science Now€¦ · Web viewCompetitive Inhibition - both the product and substrate can bind to the active site sets up a competition. Non-Competitive Inhibition-the

Factors Influencing Enzyme Action Substrate Active site Enzyme Enzyme-substrate complex Substrate Active site Enzyme Enzyme-substrate complex

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Selective catalytic hydrogenation of ,-unsaturated ... · too weak, the substrate will fail to break molecular bonds in the reactants, but if on the other hand, the interactions are

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High School Science - Limiting Reactants

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Regulation by a chaperone improves substrate selectivity ... · and protein-targeting machineries bind near the ribosome exit site and can access the nascent protein. How nascent