ACTIVATION ENERGY Flashcards
What is the amount of energy required to start a reaction
Activation energy
Speeds up chemical reactions
Catalysts
What are Biological catalysts
Enzymes(proteins)
Why do enzymes lower activation energy
So, the reaction can begin. the amount energy put in
Substrates are what?
Active sites held together by noncovalent bonds
Enzymes should not what?
Change the value of Gibbs free energy
Enzymes lower the energy of …
Transition state which is an unstable state that products pass through in order to become reactants
Conformational change when binding of active sites is
Oriental brings substrates close together in the right orientation
Physical makes the bonds unstable and more reactive to other substances
Chemical add chemical charges to make them more reactive
Co factors, Co enzymes and prosthetic groups
Inorganic, organic or no amino acids bound
These are other molecules to function
responding of cellular conditions
Reversible inhibition, Allosteric and covalent
Reversible inhabitation is
Assocation and dissociation
Competitive is where is competes with the substrate
uncompetitive can only bind to ES
non competitve can bind either way
Allosteric regulation
Molecules cause a change in shape found in metabolic pathways to display feedback
Covalent modification
The chemical change to the enzyme structure that alters the function too
What is feedback inhibition
End product inhibits an earlier pathway
How does allosteric inhitor bind to change conformation
Binds to enzyme but decreases it affinity
