AAMC FL3 C/P Flashcards
Doppler equation
if someone is moving towards a stationary sound source, how doe the perceived frequency change
frequency is increases because (v + vo) / v > 1
if someone is moving away from a stationary sound source, how does the perceived frequency change
frequency decreases because (v - vo) / v < 1
if a sound source is moving towards a stationary person, how does the perceived frequency change
frequency increases because v / (v - vs) > 1
if a sound source is moving away from a stationary person, how does the perceived frequency change
frequency decreases because v / (v + vs) < 1
1 joule =
1 newton x meter
1 watt =
1 joule / second
(work / time)
uniform electric field
a field in which the value of the field strength remains the same at all points
resistance and conductivity relationship
they are inversely related!
resistance units
ohm’s
period vs frequency
period → seconds per cycle
frequency → cycles / second
newton units
transferase
enzymes that catalyse the transfer of specific functional groups (e.g. a methyl or glycosyl group) from one molecule to another (donor to acceptor)
nucleotide vs nucleoside
Nucleosides → nitrogenous base + a five-carbon carbohydrate group (usually ribose)
Nucleotides → a nucleoside with one or more phosphate groups attached
what is this structure called
heme group
michaelis menton plot
x-axis → substrate concentration
y-axis → INITIAL reaction rate (before the reverse reaction occurs)
why do we use smaller enzyme concentrations than substrate concentrations to measure enzyme kinetics?
enzyme kinetics involves seeing how the substrate concentration affects the initial reaction rate
if we have more enzyme than substrate, each trial would be the same
what is a heme?
a porphyrin ring with iron in the center
hydroxylation
that addition of a hydroxyl group onto a compound
hydrolase
enzymes that catalyze hydrolysis (cleave bonds by adding water)
ligase
enzyme that catalyzes bond formation between 2 (larger) molecules
transferase enzyme
catalyze the transfer of a functional group (amine, carboxyl, carbonyl, methyl, acyl, etc.) from one molecule to another
lyase enzyme
catalyzes the breaking of various chemical bonds by means other than hydrolysis and oxidation
standard Gibb’s free energy (derived from Keq)
