AAMC
Le Chatelier's Principle correct answersStates that if a stress is applied to a
system at the system shifts in the direction that relieves
equilibrium,
the stress.
Bose-Einstein Principle correct answersstates that a collection of atoms
cooled close
absolute zerotowill coalesce into a single
quantum state
Heisenberg uncertainty principle correct answersStates that one cannot
known both and
momentum the position of an object with absolute
certainty
Pauli Exclusion Principle correct answersStates that two or more identical
fermions, e.g.
electrons, cannot occupy the same
quantum state
The reaction between NADH and ubiquinone is exergonic, but the
reaction, when
catalyzed by Na+-NQR, does not generate much heat in vivo. What factor
accounts
this for
difference? correct answersThe movement of a charged particle
against its
concentration gradient is energetically costly. Coupling the two
processes:
reaction the redox
between NADH and ubiquinone and the movement of Na+ up a
concentration
gradient makes the overall process less
exothermic.
If all else is held constant, which of the following changes would NOT
double the
volume of a gas correct answersBased on Boyle's Law, P is inversely
proportional
volume, thus,todoubling the pressure of a gas sample will decrease, not
increase,
volum the
e.
What is the molecular formula of the heterocyclic aromatic compound
pyrrole? correct
answersC4H5
N
How many Liters are in 1 mol of gas? correct
answers22.4 L
How does fluorescence occur? correct answersFluorescence can occur
when the radiation has a photon energy larger than the photon energy of
absorbed
the radiation
emitted through
fluorescence.
A major obstacle to obtaining useful energy from a nuclear fusion reactor is
containment
of the fuel at the very high temperatures required for fusion. The
reason such high
temperatures are required is to: correct answersenable reactants to
approach
range within
of the strong nuclear
force.
Enantiomers can exhibit a difference in which chemical or physical
property correct
answersEnantiomers have the same physical and chemical properties. They
differ only
in their three dimensional arrangement of atoms and their interactions with
other chiral
, molecules. They can differ in their smell due to interacting differently with
chiral odorant
receptor
s.
Blood Flow Speed correct answersV=
Q/A
A=
Pi*r^2
Which of the following species has an electron configuration equivalent
to that of a
noble
gas
A.
Ca2+
B.
Cu2+
C.O
D.H correct answersCa2+ has lost its valence electrons and thus attains
the electronic of the previous noble
configuration
gas (Ar).has 11 outer electrons. Loss of 2
Copper
electrons.
positive cooperativity correct answersthe first substrate changes the
shape
enzyme ofallowing
the other substrates to bind
more easily
A 2 kg mass and a 5 kg mass are connected by a massless cord
suspended
massless over
and a
frictionless pulley. If the acceleration due to gravity is g, what
will be the of the masses after they are released from rest? correct
acceleration
answersAccording
to Newton's second law, the net force acting on the 5-kg mass is
given by theFnet= 5 kg × a1 = 5 kg × g - T, where a1 is the acceleration after
expression
the release
and T is the tension in the cord. The net force acting on the 2-kg mass is
given by theFnet= 2 kg × a2 = 2 kg × g - T. Because the two
expression
masses move but in opposite directions after they are released, a1
simultaneously
Substituting
= -a2 = a. the expression T = 5 kg × (g - a) into the equation of motion
of theyields
mass 2-kg -2 kg × a = 2 kg × g - 5 kg × (g - a) = -3 kg × g + 5 kg × a.
Then
kg 7 kg
× g, × aa
hence == 3
3g/7.
An ice cube at 0°C and 1 atm is heated to form steam at 100°C and 1
atm. loss
heat Ignoring
to the surroundings, what part of the process uses the
most heat?
(Note: Specific heat of water = 1 cal/g°C. Heat of fusion = 80 cal/g. Heat of
vaporization
= 540 cal/g.) correct answersVaporizing all the water requires 540 cal/g,
which isheat
greater a requirement than specific heat or heat
of fusion.
Based on the passage, which of the following is closest to the pressure
exerted
chest byon the× 5 cm rectangular paddle during
a 10
defibrillation?
(Note: 1 Pa = 1 N/m2.) correct answersPressure is the ratio of the
force applied to a surface and the area of the surface. Because the normal
perpendicular
component
of the force is 100 N and the area is 10 cm × 5 cm = 50 cm2 = 0.005 m2,
the pressure
(100 N)/(0.005 is m2) = 20
kPa
Capacitance has a parallel relationship to... correct answers1. Area of the
parallel plates
2.
Permittivity
3.
Volage
Le Chatelier's Principle correct answersStates that if a stress is applied to a
system at the system shifts in the direction that relieves
equilibrium,
the stress.
Bose-Einstein Principle correct answersstates that a collection of atoms
cooled close
absolute zerotowill coalesce into a single
quantum state
Heisenberg uncertainty principle correct answersStates that one cannot
known both and
momentum the position of an object with absolute
certainty
Pauli Exclusion Principle correct answersStates that two or more identical
fermions, e.g.
electrons, cannot occupy the same
quantum state
The reaction between NADH and ubiquinone is exergonic, but the
reaction, when
catalyzed by Na+-NQR, does not generate much heat in vivo. What factor
accounts
this for
difference? correct answersThe movement of a charged particle
against its
concentration gradient is energetically costly. Coupling the two
processes:
reaction the redox
between NADH and ubiquinone and the movement of Na+ up a
concentration
gradient makes the overall process less
exothermic.
If all else is held constant, which of the following changes would NOT
double the
volume of a gas correct answersBased on Boyle's Law, P is inversely
proportional
volume, thus,todoubling the pressure of a gas sample will decrease, not
increase,
volum the
e.
What is the molecular formula of the heterocyclic aromatic compound
pyrrole? correct
answersC4H5
N
How many Liters are in 1 mol of gas? correct
answers22.4 L
How does fluorescence occur? correct answersFluorescence can occur
when the radiation has a photon energy larger than the photon energy of
absorbed
the radiation
emitted through
fluorescence.
A major obstacle to obtaining useful energy from a nuclear fusion reactor is
containment
of the fuel at the very high temperatures required for fusion. The
reason such high
temperatures are required is to: correct answersenable reactants to
approach
range within
of the strong nuclear
force.
Enantiomers can exhibit a difference in which chemical or physical
property correct
answersEnantiomers have the same physical and chemical properties. They
differ only
in their three dimensional arrangement of atoms and their interactions with
other chiral
, molecules. They can differ in their smell due to interacting differently with
chiral odorant
receptor
s.
Blood Flow Speed correct answersV=
Q/A
A=
Pi*r^2
Which of the following species has an electron configuration equivalent
to that of a
noble
gas
A.
Ca2+
B.
Cu2+
C.O
D.H correct answersCa2+ has lost its valence electrons and thus attains
the electronic of the previous noble
configuration
gas (Ar).has 11 outer electrons. Loss of 2
Copper
electrons.
positive cooperativity correct answersthe first substrate changes the
shape
enzyme ofallowing
the other substrates to bind
more easily
A 2 kg mass and a 5 kg mass are connected by a massless cord
suspended
massless over
and a
frictionless pulley. If the acceleration due to gravity is g, what
will be the of the masses after they are released from rest? correct
acceleration
answersAccording
to Newton's second law, the net force acting on the 5-kg mass is
given by theFnet= 5 kg × a1 = 5 kg × g - T, where a1 is the acceleration after
expression
the release
and T is the tension in the cord. The net force acting on the 2-kg mass is
given by theFnet= 2 kg × a2 = 2 kg × g - T. Because the two
expression
masses move but in opposite directions after they are released, a1
simultaneously
Substituting
= -a2 = a. the expression T = 5 kg × (g - a) into the equation of motion
of theyields
mass 2-kg -2 kg × a = 2 kg × g - 5 kg × (g - a) = -3 kg × g + 5 kg × a.
Then
kg 7 kg
× g, × aa
hence == 3
3g/7.
An ice cube at 0°C and 1 atm is heated to form steam at 100°C and 1
atm. loss
heat Ignoring
to the surroundings, what part of the process uses the
most heat?
(Note: Specific heat of water = 1 cal/g°C. Heat of fusion = 80 cal/g. Heat of
vaporization
= 540 cal/g.) correct answersVaporizing all the water requires 540 cal/g,
which isheat
greater a requirement than specific heat or heat
of fusion.
Based on the passage, which of the following is closest to the pressure
exerted
chest byon the× 5 cm rectangular paddle during
a 10
defibrillation?
(Note: 1 Pa = 1 N/m2.) correct answersPressure is the ratio of the
force applied to a surface and the area of the surface. Because the normal
perpendicular
component
of the force is 100 N and the area is 10 cm × 5 cm = 50 cm2 = 0.005 m2,
the pressure
(100 N)/(0.005 is m2) = 20
kPa
Capacitance has a parallel relationship to... correct answers1. Area of the
parallel plates
2.
Permittivity
3.
Volage
