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WorksheetsUIL SCIENCE PRACTICE TEST
Total questions: 49
Worksheet time: 44mins
In a plasma the electrons are no longer associated with a particular nucleus.
True
False
What letter on the diagram represents a gas?
A
B
C
D
What is the role of auxin that causes a plant to bend towards light?
The concentration of auxin in the plant increases when there is light.
Auxin causes uniform growth on every stem.
Auxin causes cells that are on the dark side to grow faster.
Auxin causes the increase in the number of plant cells.
The growth hormone that is used to speed up the ripening of fruits for export is
giberellin.
ethylene.
cytokinin.
auxin.
The total current through this circuit is
0.02 amps
0.09 amps
50 amps
9 amps
V = 40 volts and R = 4 ohms. What is the current?
160 amps
10 amps
4 amp
1 amp
What is the unit for current?
Ohms
Amps
Volts
Watts
How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though they look and perform completely different?
The two different cells become mutated
The proteins expressed in each cell are different
They actually have different DNA in the two types of cells.
The genome of the different cells changes
Which of these are involved in cutting out the introns? SELECT TWO.
Spliceosomes
Lactase
snRNPs
Antitrons
In an operon, a sequence of DNA where RNA polymerase binds prior to transcription.
operator
promoter
initiator
repressor
An organism that inherits two of the same alleles for
a single trait is
homozygous.
haploid.
heterozygous.
hemizygous.
polyploid.
Replicate the following DNA template strand: 3’-CAGGTTCAAG-5’
5’-CAGGTTCAAG-3’
5’-GUCCAAGUUC-3’
3’-GTCCAAGTTC-5’
5’-CAGGUUCAAG-3’
5’-GTCCAAGTTC-3’
All of the following cell division processes generate
haploid cells in humans, except
mitosis.
meiosis.
oogenesis.
gametogenesis.
Which of these statements describes the process of
translation?
The flow of genetic information from DNA to
RNA.
The copying of DNA to transmit the genetic
information to daughter cells during cell
division.
The generation of an amino acid sequence from
a specific order of codons on messenger RNA.
The expression of a gene on DNA into tRNA or
rRNA.
Vertical gene transfer during mitosis.
A Mendelian dihybrid cross in which both parents
are heterozygous for both traits would yield a
phenotypic ratio of_________________ .
1:2:1
3:1
1:1
9:3:3:1
none of the above
Inserting or deleting a base from a DNA coding
region would result in which type of mutation?
nonsense
missense
frameshift
silent
substitution
All of the following answer choices are examples of
symbiosis. Which is the best example of
mutualism?
Nitrogen-fixing bacteria residing within root
nodules of leguminous plants.
A domesticated dog having fleas.
Tapeworms inside a mammal’s intestines,
consuming nutrients and leading to malnutrition
and weight loss.
Fungi growing on the side of a dead tree by
secreting enzymes and absorbing the digested
products.
A viral infection in a human cell.
What is the correct volume reading for the liquid in
this burette?
20.84 mL
20.96 mL
20.90 mL
21.05 mL
21.16 mL
A piece of silvery metal measuring 2.0 cm × 2.0 cm
× 5.0 cm has a mass of 178.60 g. Which of these
metals is it most likely to be?
Aluminum
Iron
Cobalt
Nickel
Copper
How many atoms are in one mole of C6H14? 1 mole of molecules = 6.02 x 1023 molecules Hint: note that this question is asking for number of atoms.
6.022 × 1023
1.204 × 1024
6.022 × 1024
1.204 × 1025
6.022 × 1025
Calculate the molar mass of Ba(OH)2.
154.33 g/mol
170.33 g/mol
171.34 g/mol
155.34 g/mol
In a phospholipid, the fatty acid tails are________________ and
the “head,” which is made of phosphate and choline,
is ____________________________ .
hydrophobic; hydrophobic
hydrophobic; hydrophilic
hydrophilic; hydrophilic
hydrophilic; hydrophobic
Which tissue is excitable, conductive, and under
voluntary control?
skin
skeletal muscle
autonomic neurons
nervous tissue
cardiac muscle
Anything associated with a microbial pathogen that
enhances its disease-causing ability is called a/an
antigen.
antibody.
etiologic agent.
virulence factor.
growth factor.
The esophagus is a muscular tube that belongs to
which body organ system?
lymphatic
digestive
nervous
respiratory
endocrine
How many atoms are in one mole of C6H14?
6.022 × 1023
1.204 × 1024
6.022 × 1024
1.204 × 1025
6.022 × 1025
What is the molar mass of gaseous dinitrogen
tetroxide?
30.01 g/mol
44.02 g/mol
46.01 g/mol
88.04 g/mol
92.02 g/mol
What is the sum of the coefficients when this
chemical equation is balanced?
Fe + H2SO4 → Fe2(SO4)3 + H2
12
9
8
7
4
What is the mass percent iron in Fe2O3?
30.06%
34.97%
55.85%
69.94%
111.70%
How do the intermolecular forces in solid wax
compare to the intermolecular forces in molten
wax?
Solid wax has hydrogen bonding but molten
wax only has dipole-dipole forces.
Solid wax has hydrogen bonding but molten
wax only has dispersion forces.
Solid wax has dipole-dipole attractions, but
molten wax only has dispersion forces.
Solid wax has dispersion forces and molten wax
has no intermolecular forces.
The intermolecular forces in solid wax and in
molten wax are the same.
What is the name of the compound Cu2O?
copper oxide
copper(I) oxide
copper(II) oxide
cupric oxide
dicopper monoxide
Analyze the following answer choices. Which one
is not a catabolic pathway?
fermentation
anaerobic respiration
aerobic respiration
protein synthesis
glycolysis
The _______________structure of a protein encompasses ionic bonds, hydrophobic interactions, disulfide bridges, and hydrogen bonds to generate a three dimensional shape.
primary
secondary
tertiary
quaternary
The MMR combination vaccine is designed to
protect against all of the following viral infections,
except
measles
roseola
mumps
rubella
German measles
What is the pH of a 0.0075 M Ba(OH)2 solution?
12.18
11.88
7.5
2.12
1.82
What is the net ionic equation for the reaction of
lead(II) nitrate with potassium iodide?
2 PbNO3(aq) + KI(aq) → 2 PbI(s) + KNO3(aq)
Pb2NO3(aq) + KI(aq) → Pb2I(s) + KNO3(aq)
Pb2+(aq) + 2 NO3-(aq) + 2 K+(aq) + 2 I-(aq) → PbI2(s) +
2 KNO3(aq)
Pb2+(aq) + 2 I-(aq) → PbI2(s)
K+(aq) + NO3-(aq) → KNO3(s)
If you sprinkled table salt into a saturated solution
of lead(II) chloride, what would happen to the
concentrations of the dissolved lead and chloride
ions?
The lead ion concentration would decrease and
the chloride concentration would increase.
The chloride concentration would increase but
the lead ion concentration would stay the same.
The table salt would not dissolve, so the lead and chloride concentrations would remain unchanged.
The lead ions would precipitate out the added chloride ions, so both the lead and chloride ion concentrations would decrease from their initial levels.
The chloride concentration would increase until
it was equal to the lead concentration, then no
more table salt would dissolve.
If a piece of dry ice (solid CO2) weighing 2.85
grams is allowed to sublimate in a tied-off
balloon at 25°C and 1 atm pressure, what will
the final volume of the balloon be?
2.85 mL
0.44 L
1.45 L
1.58 L
22.4 L
Three ice cubes with a total mass of 48.22 g are
placed in a glass of tea. How much heat will be
absorbed from the tea in order to completely melt
the ice?
16.1 kJ
8.01 kJ
2.25 kJ
5.37 kJ
10.1 kJ
How many σ bonds and how many π bonds are in
one molecule of trans-2-butene?
4 σ bonds and 2 π bonds
5 σ bonds and 1 π bond
5 σ bonds and 0 π bonds
10 σ bonds and 2 π bonds
11 σ bonds and 1 π bond
When hydrocarbons are burned in the presence
of limited oxygen, carbon monoxide is formed.
Calculate the heat of reaction for the incomplete
combustion of one mole of methane. The balanced
incomplete combustion reaction is
2 CH4(g) + 3 O2(g) → 2 CO(g) + 4 H2O(l)
‒1214 kJ
‒607 kJ
‒1456 kJ
+1456 kJ
‒324 kJ
