HS Sample Set 11, Round 4 from NSB
The three-dimensional or folded shape of a protein is what hierarchical structure level? W) Primary X) Secondary Y) Tertiary Z) Quaternary
W: W) Primary
X: X) Secondary
Y: Y) Tertiary
Z: Z) Quaternary
Answer: Y) Y) Tertiary
Which of the following is NOT a basis for assays to measure cell numbers or cell proliferation? W) Presence of cell proliferation antigens X) Rate of DNA replication Y) Rate of RNA replication Z) Measurement of ATP concentration
W: W) Presence of cell proliferation antigens
X: X) Rate of DNA replication
Y: Y) Rate of RNA replication
Z: Z) Measurement of ATP concentration
Answer: Y) Y) Rate of RNA replication
Which of the following does not perform a chemical reaction during operation? W) Combustion engine X) Rocket engine Y) Batteries Z) Wind turbine
W: W) Combustion engine
X: X) Rocket engine
Y: Y) Batteries
Z: Z) Wind turbine
Answer: Z) Z) Wind turbine
Which of the following best explains why propane is stored in liquid form rather than as a gas? W) It is less flammable as a liquid X) It takes up much less space as a liquid Y) It is easier to burn as a liquid Z) It is a liquid at room temperature
W: W) It is less flammable as a liquid
X: X) It takes up much less space as a liquid
Y: Y) It is easier to burn as a liquid
Z: Z) It is a liquid at room temperature
Answer: X) X) It takes up much less space as a liquid
Which of the following thermodynamic properties is not a state function? W) Energy X) Enthalpy [EN-thul-pee] Y) Heat Z) Entropy [EN-troh-pee]
W: W) Energy
X: X) Enthalpy [EN-thul-pee]
Y: Y) Heat
Z: Z) Entropy [EN-troh-pee]
Answer: Y) Y) Heat
What principle in physics states that pressure changes on an incompressible, enclosed, static fluid are evenly distributed?
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What type of metamorphism occurs when magma is injected into crustal rock and the heat of the intrusion causes the crustal rock to metamorphose? W) Contact X) Regional Y) Burial Z) Hydrothermal
W: W) Contact
X: X) Regional
Y: Y) Burial
Z: Z) Hydrothermal
Answer: W) W) Contact
The volume of Lake Michigan is 5×10^12 cubic meters. If the flow rate of water into Lake Michigan is 5×10^10 cubic meters per year, how long, in years to one significant digit, is the residence time of water in Lake Michigan?
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Which of the following elements is the most electronegative? W) Beryllium X) Sodium Y) Calcium Z) Cesium
W: W) Beryllium
X: X) Sodium
Y: Y) Calcium
Z: Z) Cesium
Answer: W) W) Beryllium
Which of the following is an assumption of the ideal gas law? W) The volume of individual molecules is negligible compared to the volume of the container X) All molecules travel at the same velocity Y) Molecules only interact through dipole-dipole forces Z) Molecules do not collide with each other
W: W) The volume of individual molecules is negligible compared to the volume of the container
X: X) All molecules travel at the same velocity
Y: Y) Molecules only interact through dipole-dipole forces
Z: Z) Molecules do not collide with each other
Answer: W) W) The volume of individual molecules is negligible compared to the volume of the container
In a room of 12 people, two meet for a handshake. How many different such meetings could take place?
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If x is inversely proportional to y² and if x = 3 when y = 4, what is the value of x when y = 6?
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What nonrenewable energy source represents the greatest percentage of US energy consumption? W) Coal X) Natural gas Y) Propane Z) Petroleum
W: W) Coal
X: X) Natural gas
Y: Y) Propane
Z: Z) Petroleum
Answer: Z) Z) Petroleum
According to the U.S. Energy Information Administration, which of the following sectors consumed the most energy in the United States in 2014? W) Commercial X) Residential Y) Transportation Z) Industrial
W: W) Commercial
X: X) Residential
Y: Y) Transportation
Z: Z) Industrial
Answer: Z) Z) Industrial
If a = 6 cos θ and b = 6 sin θ, what is the square root of (a² + b²)?
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What is the median of the set of the first 2017 even positive integers?
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How many d electrons are present in a cobalt ion in the +2 state?
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Rank the following four elements in terms of increasing melting point: 1) Boron; 2) Sodium; 3) Lithium; 4) Tungsten.
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In what part of a plant is the casparian strip located? W) The bark X) The stomatal guard cells Y) The endodermis of the root Z) The stem cortex
W: W) The bark
X: X) The stomatal guard cells
Y: Y) The endodermis of the root
Z: Z) The stem cortex
Answer: Y) Y) The endodermis of the root
What type of symmetry do platyhelminths possess?
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Given a graph with acceleration on the y-axis and time on the x-axis, what physical quantity does the area under the curve represent?
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If one left-circularly polarized laser beam and one right-circularly polarized laser beam with the same amplitude and frequency are combined into a single beam, what is the polarization of the resulting beam? W) Circular X) Elliptical Y) Linear Z) Unpolarized
W: W) Circular
X: X) Elliptical
Y: Y) Linear
Z: Z) Unpolarized
Answer: Y) Y) Linear
Which of the following minerals is not a carbonate? W) Rhodochrosite X) Fluorite Y) Azurite Z) Calcite
W: W) Rhodochrosite
X: X) Fluorite
Y: Y) Azurite
Z: Z) Calcite
Answer: X) X) Fluorite
A star has five times the radius of the Sun, and the temperature in kelvins of its surface is twice that of the Sun. How many times as luminous as the Sun is it?
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How many faces does a hexagonal pyramid have?
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Two dice are rolled. What is the probability that the results are the same or that the sum is 8?
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DOE researchers are studying unique chemical bonds formed by interactions between lithium cations and organo-aluminum compounds. Which of the following bonds are formed by these interactions? W) Two-center one-electron bonds X) Two-center two-electron bonds Y) Three-center two-electron bonds Z) Four-center one-electron bonds
W: W) Two-center one-electron bonds
X: X) Two-center two-electron bonds
Y: Y) Three-center two-electron bonds
Z: Z) Four-center one-electron bonds
Answer: Y) Y) Three-center two-electron bonds
Identify all of the following three statements that are true regarding ethanol fuel: 1) E15 is a renewable fuel; 2) Ethanol blender pumps are most commonly found in the Midwest; 3) E15 produces less carbon monoxide emissions than pure gasoline.
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Which of the following materials would make the best aquitard? W) Sand X) Limestone Y) Clay Z) Gravel
W: W) Sand
X: X) Limestone
Y: Y) Clay
Z: Z) Gravel
Answer: Y) Y) Clay
Which of the following statements is NOT true regarding neutron stars? W) They are supported by electron degeneracy pressure X) Pulsars are thought to be a type of neutron star Y) After initial neutrino burn-off, neutron stars cool slowly due to their small surface area Z) The center of the Crab Nebula is a neutron star
W: W) They are supported by electron degeneracy pressure
X: X) Pulsars are thought to be a type of neutron star
Y: Y) After initial neutrino burn-off, neutron stars cool slowly due to their small surface area
Z: Z) The center of the Crab Nebula is a neutron star
Answer: W) W) They are supported by electron degeneracy pressure
What type of muscle is found in the intestinal wall?
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Metallothionein is a protein that has been engineered into rice in order to promote iron uptake in the small intestine. This is because iron uptake requires which of the following elements? W) Phosphorus X) Selenium Y) Sulfur Z) Chlorine
W: W) Phosphorus
X: X) Selenium
Y: Y) Sulfur
Z: Z) Chlorine
Answer: Y) Y) Sulfur
A 10,000-kilogram truck is rolling at 2 meters per second when 5000 kilograms of cargo is dropped into it. Which of the following, in meters per second, is closest to the truck's speed afterwards? W) 1 X) 1.3 Y) 1.5 Z) 2
W: W) 1
X: X) 1.3
Y: Y) 1.5
Z: Z) 2
Answer: X) X) 1.3
Identify all of the following three statements that are true of light: 1) Diffraction is an example of the wave-nature of light; 2) Interference is an example of the wave-nature of light; 3) The energy carried by light is directly proportional to frequency.
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What is the most likely type of interaction between the side chains of the amino acids leucine and phenylalanine? W) Ionic X) Hydrophobic Y) Hydrogen bonding Z) Dipole-dipole
W: W) Ionic
X: X) Hydrophobic
Y: Y) Hydrogen bonding
Z: Z) Dipole-dipole
Answer: X) X) Hydrophobic
Consider the SN2 reaction of 1-chloropentane with the azide ion. What is the LUMO of the electrophile in this reaction?
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Which of the four terrestrial planets is most unlike the others in density?
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What phenomenon is believed to be the main driver in the accelerated expansion of the universe? W) Dark matter X) Black hole evaporation Y) Dark energy Z) Quantum gravity
W: W) Dark matter
X: X) Black hole evaporation
Y: Y) Dark energy
Z: Z) Quantum gravity
Answer: Y) Y) Dark energy
Identify all of the following three statements concerning enthalpy that are TRUE: 1) The enthalpy of formation of diamond is equal to zero; 2) The enthalpy change of an isothermal contraction is less than zero; 3) The enthalpy of solution of ammonium nitrate is greater than zero.
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Identify all of the following three compounds that have a standard enthalpy of formation of zero: 1) Ozone; 2) Diamond; 3) Rhombic sulfur.
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In a viscous fluid, what is the type of flow characterized by having layers of currents that are all parallel to the flow?
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An ideal pendulum has a period of 1 second. If its mass is multiplied by 3 and its length is multiplied by 4, what is the new period of the pendulum, in seconds?
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What is 4 times 3 squared?
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Johnny is asked by his teacher to subtract 4 from a number and multiply the result by 5. Instead, he subtracts 5 and then multiplies the result by 4, giving him 168. What is the correct answer to the teacher’s question?
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What type of cells are found in the lacunae of cartilage?
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Identify all of the following three cell types that are leukocytes: 1) Eosinophil; 2) Basophil; 3) Erythrocyte.
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