AAMC Test 2 Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Kcat = - CORRECT ANSWER Vmax/[E] (enzyme saturated with substrate)
in increasing polarity - CORRECT ANSWER alkane < ketone < alcohol < carboxylic
acid
Carbon-14 decays into ___ through beta decay - CORRECT ANSWER N-14
carbon-labelling - CORRECT ANSWER carbon-14 atoms can be used to replace
nonradioactive carbon, in order to trace chemical and biochemical reactions involving carbon
atoms from any given organic compound
half life is defined as - CORRECT ANSWER the time it takes for half of all the
radioactive nuclei to decay into their daughter nuclei (which may or may not be radioactive)
parent nucleus -> daugher nucleus (may or may not be a change in elemental identity, based
on type of decay
All atoms other than hydrogen are subject to __ - CORRECT ANSWER radioactive
decay
'asymmetric environment' may refer to __ - CORRECT ANSWER chirality
the energy of a photon matches the energy gap between __ - CORRECT ANSWER the
ground and the excited state
phosphoryl transfer from kinases comes from the __-phosphate of ATP - CORRECT
ANSWER gamma
,ATP - CORRECT ANSWER most active phosphate = gamma phosphate
venturi mask - CORRECT ANSWER Air enters the mask because the static pressure of
the air is larger than the static pressure of the oxygen in flow.
A face mask and reservoir bag device that delivers specific concentrations of oxygen by
mixing oxygen with inhaled air.
venturi effect - CORRECT ANSWER the amount of gas drawn into the air stream in a
low pressure gas system
Reduction in pressure of a fluid resulting from the speed increase as fluids are forced to flow
faster through narrow spaces
oxygen flow pressure - CORRECT ANSWER rv^2/r
vapor pressure is best measured by a fluid's __ - CORRECT ANSWER boiling point
Boyle's Law - CORRECT ANSWER VP = constant
If volume increases, pressure decreases (inverse relationship).
(when you 'boil' something, you are concerned about the Vapor Pressure (VP))
Charles's Law - CORRECT ANSWER V/T = constant
(von trapp?)
The volume of the gas is directly proportional to temperature.
, Avogadro's Law - CORRECT ANSWER V/n = constant
As more molecules are added to a flexible container at constant temperature and pressure, the
volume expands.
coordinate covalent bond - CORRECT ANSWER a covalent bond in which one atom
contributes both bonding electrons
e.g. [Cu(NH3)4)]2+
coordination number - CORRECT ANSWER The number of ions of opposite charge
that surround the ion in a crystal
how to calculate mass percent - CORRECT ANSWER # of atoms of particular element
* atomic weight/total weight of compound * 100%
math tip - CORRECT ANSWER MCAT may give you 'suspicious' numbers that will
help with dirty math. Watch out for these!
backbone of DNA - CORRECT ANSWER Sugar and phosphate group
phosphodiester bonds - CORRECT ANSWER Bonds between phosphate group and
pentose sugar in nucleic acids.
Which of the following bonds is the shortest?
CH
CO
CC
QUESTIONS AND CORRECT ANSWERS
Kcat = - CORRECT ANSWER Vmax/[E] (enzyme saturated with substrate)
in increasing polarity - CORRECT ANSWER alkane < ketone < alcohol < carboxylic
acid
Carbon-14 decays into ___ through beta decay - CORRECT ANSWER N-14
carbon-labelling - CORRECT ANSWER carbon-14 atoms can be used to replace
nonradioactive carbon, in order to trace chemical and biochemical reactions involving carbon
atoms from any given organic compound
half life is defined as - CORRECT ANSWER the time it takes for half of all the
radioactive nuclei to decay into their daughter nuclei (which may or may not be radioactive)
parent nucleus -> daugher nucleus (may or may not be a change in elemental identity, based
on type of decay
All atoms other than hydrogen are subject to __ - CORRECT ANSWER radioactive
decay
'asymmetric environment' may refer to __ - CORRECT ANSWER chirality
the energy of a photon matches the energy gap between __ - CORRECT ANSWER the
ground and the excited state
phosphoryl transfer from kinases comes from the __-phosphate of ATP - CORRECT
ANSWER gamma
,ATP - CORRECT ANSWER most active phosphate = gamma phosphate
venturi mask - CORRECT ANSWER Air enters the mask because the static pressure of
the air is larger than the static pressure of the oxygen in flow.
A face mask and reservoir bag device that delivers specific concentrations of oxygen by
mixing oxygen with inhaled air.
venturi effect - CORRECT ANSWER the amount of gas drawn into the air stream in a
low pressure gas system
Reduction in pressure of a fluid resulting from the speed increase as fluids are forced to flow
faster through narrow spaces
oxygen flow pressure - CORRECT ANSWER rv^2/r
vapor pressure is best measured by a fluid's __ - CORRECT ANSWER boiling point
Boyle's Law - CORRECT ANSWER VP = constant
If volume increases, pressure decreases (inverse relationship).
(when you 'boil' something, you are concerned about the Vapor Pressure (VP))
Charles's Law - CORRECT ANSWER V/T = constant
(von trapp?)
The volume of the gas is directly proportional to temperature.
, Avogadro's Law - CORRECT ANSWER V/n = constant
As more molecules are added to a flexible container at constant temperature and pressure, the
volume expands.
coordinate covalent bond - CORRECT ANSWER a covalent bond in which one atom
contributes both bonding electrons
e.g. [Cu(NH3)4)]2+
coordination number - CORRECT ANSWER The number of ions of opposite charge
that surround the ion in a crystal
how to calculate mass percent - CORRECT ANSWER # of atoms of particular element
* atomic weight/total weight of compound * 100%
math tip - CORRECT ANSWER MCAT may give you 'suspicious' numbers that will
help with dirty math. Watch out for these!
backbone of DNA - CORRECT ANSWER Sugar and phosphate group
phosphodiester bonds - CORRECT ANSWER Bonds between phosphate group and
pentose sugar in nucleic acids.
Which of the following bonds is the shortest?
CH
CO
CC
