Download Chemical Reactions and Enzymes What is a chemical reaction?

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Registration, Evaluation, Authorisation and Restriction of Chemicals wikipedia, lookup

Nuclear fusion wikipedia, lookup

Glycolysis wikipedia, lookup

Artificial photosynthesis wikipedia, lookup

Asymmetric induction wikipedia, lookup

Chemical equilibrium wikipedia, lookup

Chemical biology wikipedia, lookup

Chemical industry wikipedia, lookup

Process chemistry wikipedia, lookup

Redox wikipedia, lookup

Photoredox catalysis wikipedia, lookup

Unbinilium wikipedia, lookup

Electrochemistry wikipedia, lookup

Hydrogen-bond catalysis wikipedia, lookup

Restriction enzyme wikipedia, lookup

Biosynthesis of doxorubicin wikipedia, lookup

Physical organic chemistry wikipedia, lookup

Proteolysis wikipedia, lookup

Biosynthesis wikipedia, lookup

Marcus theory wikipedia, lookup

Enzyme inhibitor wikipedia, lookup

Oxidative phosphorylation wikipedia, lookup

Stoichiometry wikipedia, lookup

Click chemistry wikipedia, lookup

Biochemistry wikipedia, lookup

Lewis acid catalysis wikipedia, lookup

Chemical reaction wikipedia, lookup

Photosynthetic reaction centre wikipedia, lookup

George S. Hammond wikipedia, lookup

Metalloprotein wikipedia, lookup

Bioorthogonal chemistry wikipedia, lookup

Catalysis wikipedia, lookup

Supramolecular catalysis wikipedia, lookup

Chemical thermodynamics wikipedia, lookup

Evolution of metal ions in biological systems wikipedia, lookup

Enzyme kinetics wikipedia, lookup

Transition state theory wikipedia, lookup

Enzyme catalysis wikipedia, lookup

Enzyme wikipedia, lookup

Transcript
Chemical Reactions and
Enzymes
What is a chemical reaction?
• Changes or transforms chemicals into other
chemicals
• Ex: Iron + Oxygen Iron Oxide (rust)
• What is the product?
• What are the reactants?
Energy Is Required
• Energy can be either
given off or absorbed
for a chemical reaction
to occur
• Identify the type of
reaction as either
endothermic or
exothermic by the
graphs to the right:
Activation Energy
•
•
Energy needed to start a reaction
Identify the activation energy supplied for
the following chemical reactions
1) Building a Fire
2) Turning on a Light
3) Starting a Car
Catalyst
• Any substance that lowers the activation
energy needed to start a reaction.
Enzymes Baby!!!!!!
• Describe what enzymes “do” using the
graph below:
Enzymes
• Enzymes are proteins made by the
cell to speed up the chemical
reactions.
Properties of Enzymes
1. Lowers activation energy
2. Speeds up a reaction
3. Can be used repeatedly
4. Shape specific (substrate)*
*If shape is altered, enzyme cannot
function
Animations
Factors That Affect Enzyme Activity
• High Temperature (boiling )
• Extreme pH – (acid/base)
• Changes enzyme shape
Denaturing an Enzyme
• A change in the shape of the active site on
the enzyme
What life molecule are enzymes a
part of???
PROTEINS!
• Enzymes = speed up reactions (to break
down substances)
• Substrate= a molecule which is acted upon
by an enzyme (the reactant)
“ase”
• Enzymes have an ending “ase”
• It helps you identify which one
is the enzyme and which one is
the substrate.