MCAT

Are you ready for the MCAT?

Question 1:A brick falls from a height of 1200 feet. How many seconds will it take to hit the ground?
80 sec
8.93 sec
41.5 sec
8.66 sec
25 sec
Question 2:Which of the following has the greatest vapor pressure?
CH3Cl
CH3CH2Cl
CH3CH2CH2Cl
(CH3)3CCl
CH3CH2CH2CH2Cl
Question 3:What are the units of a Newton?
g cm/s
g cm/s2
kg cm/s2
kg m/min2
kg m/s2
Question 4:The pumping chambers of the heart are
aorta
atria
ventricles
parabella
cardiac muscles
Question 5:Which of the following is a meta directing, deactivating substituent when attached to a benzene ring?
NO2
CH3
Br
NH2
Cl
Question 6:12 freight cars are hooked together. The entire weight of these cars amounts to 200 tons; the coefficient of rolling friction is 0.005. The rail bed is level. How fast can an engine of 400 hp pull the string of cars?
75 mi/h
50 mi/h
20 mi/h
100 mi/h
120 mi/h
Question 7:How much horsepower is needed to move the train at 45 mi/h?
100 hp
240 hp
200 hp
310 hp
460 hp
Question 8:Calculate the force exerted by the engine.
150 lbs
2000 lbs
1000 lbs
3010 lbs
4000 lbs
Question 9:This organism makes its own food from CO2 and water.
green plant
green mold
mushroom
yeast
fungus
Question 10:Members of the same _____ show the greatest structural similarities.
family
class
phylum
species
Question 11:In human digestion, fats are hydrolyzed to
starches and sugars
glucagen and glycose
starches and fatty acids
a trisaccharide and a sugar
glycerol and fatty acids
Question 12:An aldol is the product of
the reaction of a Grignard reagent with an alkyl halide
the condensation of a ketone and ester
the condensation of 2 esters
a thermal conduction between 2 benzyl hydrochlorines
the condensation of 2 moles of aldehyde
Question 13:A female zygote will develop when the sperm cell carries
a y chromosome
an x and y chromosome
2 x chromosomes
2 y chromosomes
an x chromosome
Question 14:A 25 kg object is raised 10 meters. How much work is done?
3120 J
2450 J
1500 J
850 J
2100 J
Question 15:The first stae of embryonic development is the (HINT: 3 distinct germ layers are seen!!!)
embryo
blastula
morula
gastrula
morulia
Question 16:Phosgene, a poisonous gas used in World War I, is mainly used in the production of certain polymers today. Ingestion of this gas causes death by:
arresting heartbeat
complexing with hemoglobin faster than oxygen
disrupting the DNA framework by nucleophilic reaction
reacting with water to produce HCl
breaking down cell structure
Question 17:How many ATPs are produced frome one molecule of pyruvate by the Krebs cycle and electron transport system?
18
11
15
15
20
Question 18:The Golgi apparatus primarily functions in
golgifying stuff, dude
synthesizing protein for secretion
packaging protein for hydrolysis
synthesizing protein for secretion
packaging protein for secretion
Question 19:Two forces of 10 newtons and 6 newtons act on an object. In order to produce a resultant force of 4 newtons, how many degrees apart must they be oriented with respect to each other?
180
45
90
60
25
Question 20:Hydrolysis of peptide bonds produces
glucosides
carboxylic acids
glucose monomers
esters or waxes
amino acids
Question 21:Which of the following is the weakest acid: NH3, CH3OH, (CH3)2NH, CH3CH2ONa
CH3OH
NH3
CH3CH2ONa
(CH3)2NH
cannot be determined from the information provided
Question 22:Which carbohydrate does not have a sweet taste?
disaccharides
glucose
monosaccharides
polysaccharides
they all have a sweet taste
Question 23:The complement system of the immune response does not
agglutinate antigens
precipitate antigens
neutralize toxic sites
ingest antigens
It does all of these things.
Question 24:What is the oxidation number of the oxygen in water?
-1
+2
-2
+1
Question 25:10.0 grams of an unknown hydrocarbon are dissolved in 1.00 kg of cyclohexane. The freezing point of the solution is 5.90 deg. What is the molecular weight of the hydrocarbon? The normal freezing point of cyclohexane is 6.50 deg. and the kf is 20.2
130
142
156
132
168
Question 26:a. What is the pH of an aqueous solution of 0.04 M NaOH? b. What is the pH of an aqueous solution of 4.00 M HCl?
a. 11.62 b. 1.5
a. 13.25 b. -1.2
a. 12.10 b. 0.80
a. 13.98 b. 0.003
a. 12.60 b. -0.60
Question 27:A boy leaning over a railway bridge 49 ft high sees a train approaching with uniform speed and tries to drop a stone down the funnel. He releases the stone when the engine is 80 ft away from the bridge and the stone hits the ground 3 ft in front of the engine. What is the speed of the train?
30 mph
40 mph
50 mph
60 mph
70 mph
Question 28:The half-life of radon is 3.80 days. After how many days will one sixteenth of the sample remain?
16.3 days
17.4 days
18.5 days
15.2 days
19.6 days
Question 29:Porins are important in
facilitated diffusion
passive transport
saturable processes only
substrate binding
plant photosynthesis
Question 30:The adrenal medulla is most closely associated with ____
epinephrine
insulin
chorionic gonadotropin
vasopressin
none of these responses are reasonable

This Quiz has been designed by David Flosser.