Kaplan Practice Test 6\\\Kaplan
Practice Test 6 – Questions & Answers
(2025)
Based ontheinformation inthepassage, what isthemaximum pressure above atmospheric pressure
thatthebiomedical engineer's device should be programmed to exert?
question wants device to not damage those with weakest lungs. Thus, we know thatthehigh value in set
was 111.9 and thattherange is 44. simple math gets you
67 kPa approximately
pressure vs volume graph shown. what isthePower in 4 seconds?
work is area under curve of P vs V so calculate this (pay attention to numbers on x and y axis). then
divide this by t because W/t is power
Radiation therapy is also used to treat a multitude of cancers. Strontium-90 is used to produce
particles weighing 4 amu that help kill cancerous cells. Strontium-90 is undergoing
alpha decay
emitting an alpha particle of 2 protons and 2 neutrons is alpha decays
Taxol makes it more difficult for microtubules to disassemble thus leading to interference in mitosis of
cancerous cells. This is most likely caused by:
raisingtheactivation energy needed to disassemble microtubule subunits
NOT a change in enthalpy when disassembled w Taxol or w/out. Enthalpy stuff not mentioned so fine to
just go with activation energy explanation
Carbon, phosphorus, nitrogen, and oxygen are some ofthemain organic constituents of life. If
100,000,000 atoms of each of these were packed together as tightly as possible, which would take
uthesmallest space?
Oxygen,
NOT carbon. up and totheright is smaller atomic size on periodic table
Which ofthefollowing aldehydes would be an appropriate starting substrate fortheproduction of
valine (the R group of which is (CH3)2-CH) usingthestrecker synthesis method?
"identity of aldehyde will decide amino acid that results"
,(CH3)2-CH-COH
Which ofthefollowing esters would bethemost appropriate for synthesizing alanine? "gabriel
synthesis produces primary amines and made with malonic ester"
malonic esters are structures w 2 esters separated by a carbon
When stereochemistry differs atthechiral carbon of a structure with one chiral carbon, they are
enantiomers
A pitcher draws back his arm 0.5 m and then pitches a 0.5 kg baseball at 40 m/s, releasingtheball 1 m
in front of his body. What istheaverage force being applied bythepitcher?
KE = 1/2 (.5) (40)*2 = 400
KE = W
F = W/d
400/1.5 = 267 N
Two patients have similar gastric [HCl]. Patient A is given calcium carbonate while patient B is given
magnesium hydroxide. Afterthetreatments:
patient A's gastric pH will lower, since calcium carbonate is a weaker base than magnesium hydroxide
Seduhepulose-7-phosphate is an intermediate intheNADPH-producing pentose phosphate pathway. It
is derived from sedoheptulose, one of only a few ketoheptoses found in nature. What isthethe
relationship between D-sedoheptulose and L-sedoheptulose?
They are enantiomers andthe6th carbon hastheR designation in D-septulose andtheS designation in L-
sedoheptulose
D and L isomers of carbodydrates are enantiomers of each other, NOT diastereomers
Which of these statements regarding Glu-1749 in lactase is most likely to be true?
After replacing Glu-1749 with aspartic acid, lactase would have less catalytic thanthewild type
would NOT preserve full catalytic acitivity, likely somewhat affected because of geometry change
A researcher hydrolyzes disaccharide 1 from figure 2.thering ontheleft and glucose are best classified
as:
I. Diastereomers
II. Enantiomers
III. Epimers
I and III
Both diastereomers AND Epimers because of difference in only one carbon that is chiral
, What is an acetal vs hemiacetal
acetal has 2 OR groups, an R group and an H atom.
hemiacetal has OR group, OH group, instead of 2 OR groups
What is a hemiketal vs ketal
hemiketal same as hemiacetal but has 2 R groups instead of an R group and an H atom
ketal same as acetal but has 2 R groups instead of an R group and H atom
Sphingomyelins are a major component ofthemyelin sheath. Sphingomyelins differ from gangliosides,
which are found in cell membranes, in that:
all gangliosides have an oligosaccharide as a head group, while not all sphingomyelins do
Intheexperimental setup shown in Figure 1, whenthevoltage atthevoltage source is increased
passively by 20mV,thevoltage attheprobe will be approximately
resting potential = -70
change in applied voltage is log deltaV/V0 = -x/2.30A
x is 200um and A is 80um
log deltaV/Vo = -1
since log is -1,theratio of delta V/Vo is 1/10
20 x 1/10 is 2. -70 + 2 is then -68 fortheanswer
Membrane fluidity is a function ofthemembrane's components;themore likely a molecule is to be a
solid,theless fluidthemembrane will be. Which ofthefollowing triglycerides would conferthemost
fluidity to a membrane?
One containing three molecules of octadeca-9,12,15-trienoic acid
question essentially asking which is least likely to be solid, thus just pick most unsaturated fatty acids
because this this is liquid at room T
A student takesthelens from a laser and finds that an object placed 12 centimeters behind ofthelens
creates an image that is 48 centimeters behindthelens.thefocal point forthelight passing
throughthelens in this situation is located:
formula for focal point is:
1/o - 1/i = 1/f
1/12 - 1/48 = 1/f
16 cm in front of lens, NOT behind. positive
Practice Test 6 – Questions & Answers
(2025)
Based ontheinformation inthepassage, what isthemaximum pressure above atmospheric pressure
thatthebiomedical engineer's device should be programmed to exert?
question wants device to not damage those with weakest lungs. Thus, we know thatthehigh value in set
was 111.9 and thattherange is 44. simple math gets you
67 kPa approximately
pressure vs volume graph shown. what isthePower in 4 seconds?
work is area under curve of P vs V so calculate this (pay attention to numbers on x and y axis). then
divide this by t because W/t is power
Radiation therapy is also used to treat a multitude of cancers. Strontium-90 is used to produce
particles weighing 4 amu that help kill cancerous cells. Strontium-90 is undergoing
alpha decay
emitting an alpha particle of 2 protons and 2 neutrons is alpha decays
Taxol makes it more difficult for microtubules to disassemble thus leading to interference in mitosis of
cancerous cells. This is most likely caused by:
raisingtheactivation energy needed to disassemble microtubule subunits
NOT a change in enthalpy when disassembled w Taxol or w/out. Enthalpy stuff not mentioned so fine to
just go with activation energy explanation
Carbon, phosphorus, nitrogen, and oxygen are some ofthemain organic constituents of life. If
100,000,000 atoms of each of these were packed together as tightly as possible, which would take
uthesmallest space?
Oxygen,
NOT carbon. up and totheright is smaller atomic size on periodic table
Which ofthefollowing aldehydes would be an appropriate starting substrate fortheproduction of
valine (the R group of which is (CH3)2-CH) usingthestrecker synthesis method?
"identity of aldehyde will decide amino acid that results"
,(CH3)2-CH-COH
Which ofthefollowing esters would bethemost appropriate for synthesizing alanine? "gabriel
synthesis produces primary amines and made with malonic ester"
malonic esters are structures w 2 esters separated by a carbon
When stereochemistry differs atthechiral carbon of a structure with one chiral carbon, they are
enantiomers
A pitcher draws back his arm 0.5 m and then pitches a 0.5 kg baseball at 40 m/s, releasingtheball 1 m
in front of his body. What istheaverage force being applied bythepitcher?
KE = 1/2 (.5) (40)*2 = 400
KE = W
F = W/d
400/1.5 = 267 N
Two patients have similar gastric [HCl]. Patient A is given calcium carbonate while patient B is given
magnesium hydroxide. Afterthetreatments:
patient A's gastric pH will lower, since calcium carbonate is a weaker base than magnesium hydroxide
Seduhepulose-7-phosphate is an intermediate intheNADPH-producing pentose phosphate pathway. It
is derived from sedoheptulose, one of only a few ketoheptoses found in nature. What isthethe
relationship between D-sedoheptulose and L-sedoheptulose?
They are enantiomers andthe6th carbon hastheR designation in D-septulose andtheS designation in L-
sedoheptulose
D and L isomers of carbodydrates are enantiomers of each other, NOT diastereomers
Which of these statements regarding Glu-1749 in lactase is most likely to be true?
After replacing Glu-1749 with aspartic acid, lactase would have less catalytic thanthewild type
would NOT preserve full catalytic acitivity, likely somewhat affected because of geometry change
A researcher hydrolyzes disaccharide 1 from figure 2.thering ontheleft and glucose are best classified
as:
I. Diastereomers
II. Enantiomers
III. Epimers
I and III
Both diastereomers AND Epimers because of difference in only one carbon that is chiral
, What is an acetal vs hemiacetal
acetal has 2 OR groups, an R group and an H atom.
hemiacetal has OR group, OH group, instead of 2 OR groups
What is a hemiketal vs ketal
hemiketal same as hemiacetal but has 2 R groups instead of an R group and an H atom
ketal same as acetal but has 2 R groups instead of an R group and H atom
Sphingomyelins are a major component ofthemyelin sheath. Sphingomyelins differ from gangliosides,
which are found in cell membranes, in that:
all gangliosides have an oligosaccharide as a head group, while not all sphingomyelins do
Intheexperimental setup shown in Figure 1, whenthevoltage atthevoltage source is increased
passively by 20mV,thevoltage attheprobe will be approximately
resting potential = -70
change in applied voltage is log deltaV/V0 = -x/2.30A
x is 200um and A is 80um
log deltaV/Vo = -1
since log is -1,theratio of delta V/Vo is 1/10
20 x 1/10 is 2. -70 + 2 is then -68 fortheanswer
Membrane fluidity is a function ofthemembrane's components;themore likely a molecule is to be a
solid,theless fluidthemembrane will be. Which ofthefollowing triglycerides would conferthemost
fluidity to a membrane?
One containing three molecules of octadeca-9,12,15-trienoic acid
question essentially asking which is least likely to be solid, thus just pick most unsaturated fatty acids
because this this is liquid at room T
A student takesthelens from a laser and finds that an object placed 12 centimeters behind ofthelens
creates an image that is 48 centimeters behindthelens.thefocal point forthelight passing
throughthelens in this situation is located:
formula for focal point is:
1/o - 1/i = 1/f
1/12 - 1/48 = 1/f
16 cm in front of lens, NOT behind. positive
