DAT Biothermodynamics cheat sheet Flashcards
Anabolic:
Small molecules assemble to form a larger molecule
Catabolic:
Catabolic: Large molecules are broken into smaller molecules
Exergonic:
Free energy is released
Endergonic:
Free energy is absorbed
spontaneous rxn
- delt G, exergonic
non spontaneous rxn
+ delt G, endergonic
most enzymes are what?
proteins
a few enzymes are made of what (riboenzymes)
RNA
area of the enzyme where the substrate binds
active site
Allosteric site:
A secondary location where an effector binds
what can an effector be?
activator or inhibitor
what kind of inhibition is substance that mimics the substrate inhibits
enzyme by binding to active site, thus preventing
binding of substrate
competitive inhibition
how can competitive inhibition be overcome
inc substrate conc
what kind of inhibition is substance inhibits the enzyme by binding to a
secondary location called the allosteric site
noncompetitive inhibiton
can substrate still hind in noncompetitive inhibition
yes, rxn cannot occur tho
how is ATP formed
phosphorylation,
what is phosphorylation
creates energy rich
triphosphate bond
is ATP production ender or exergoinc
endergoinic
how is ATP broken apart
hydrolysis
is hydrolysis ender or exergonic
exergonic
what is v max
maximum velocity of the reaction at peak substrate
saturation
what is Km
substrate concentration at which the
rate of the reaction is half of the maximum velocity
what is the inverse of Km
binding affinity
what does it mean to have small km
less substrate needed to reach vmax
