MS Sample Set 9, Round 5 from NSB
The difference between eukaryotic and prokaryotic cells is that prokaryotic cells lack what organelle? W) Cell membrane X) DNA Y) Nucleus Z) Ribosomes
W: W) Cell membrane
X: X) DNA
Y: Y) Nucleus
Z: Z) Ribosomes
Answer: Y) Y) Nucleus
Which of the following biological molecules make up the main part of the bilayer and hydrophobic region of the plasma cell membrane? W) Oligosaccharides X) Carbohydrates Y) Phospholipids Z) Proteins
W: W) Oligosaccharides
X: X) Carbohydrates
Y: Y) Phospholipids
Z: Z) Proteins
Answer: Y) Y) Phospholipids
Two to the 4th power divided by 2 to the 3rd power equals 2 to what power?
Acceptable Answers:
Nick, Anna, and Sherry go on a vacation and agree to split the costs evenly. During the trip, Nick paid \$105, Anna paid \$125, and Sherry paid \$175. In order to share the costs evenly, Nick gave Sherry x dollars and Anna gave Sherry y dollars. What is x + y? W) 20 X) 30 Y) 40 Z) 50
W: W) 20
X: X) 30
Y: Y) 40
Z: Z) 50
Answer: Y) Y) 40
Which of the following defines a pure substance that cannot be broken down by any chemical means? W) Compound X) Element Y) Solid Z) Solution
W: W) Compound
X: X) Element
Y: Y) Solid
Z: Z) Solution
Answer: X) X) Element
How many lone pairs of electrons exist in a single water molecule?
Acceptable Answers:
In what two seasons do lakes undergo turnovers?
Acceptable Answers:
The deepest known point of the oceans is found in which of the following? W) Atlantic Ocean X) Pacific Ocean Y) Dead Sea Z) North Sea
W: W) Atlantic Ocean
X: X) Pacific Ocean
Y: Y) Dead Sea
Z: Z) North Sea
Answer: X) X) Pacific Ocean
A keystone species is: W) Required for maintaining the health of an ecosystem X) Necessary for the survival of another species Y) The last to go extinct after a disturbance Z) The hardiest species in an ecosystem
W: W) Required for maintaining the health of an ecosystem
X: X) Necessary for the survival of another species
Y: Y) The last to go extinct after a disturbance
Z: Z) The hardiest species in an ecosystem
Answer: W) W) Required for maintaining the health of an ecosystem
The property of metalloids which makes them useful in computer chips is their: W) Brittle structure X) Varying ability to conduct electricity Y) Somewhat reactive nature Z) Hardness
W: W) Brittle structure
X: X) Varying ability to conduct electricity
Y: Y) Somewhat reactive nature
Z: Z) Hardness
Answer: X) X) Varying ability to conduct electricity
Which of the following is true about spiral galaxies? W) They emit mainly in the ultraviolet range of energy X) They are usually similar to our galaxy Y) They originate from supernova explosions Z) They typically contain a few thousand stars
W: W) They emit mainly in the ultraviolet range of energy
X: X) They are usually similar to our galaxy
Y: Y) They originate from supernova explosions
Z: Z) They typically contain a few thousand stars
Answer: X) X) They are usually similar to our galaxy
Which of the following stars can someone in North America see year-round? W) Sirius X) Rigel Y) Betelgeuse Z) Polaris
W: W) Sirius
X: X) Rigel
Y: Y) Betelgeuse
Z: Z) Polaris
Answer: Z) Z) Polaris
Which of the following is a group of organic compounds that is often added to foods to enhance flavors such as strawberry or banana and are also found in sweet-smelling flowers? W) Amines X) Esters Y) Alcohols Z) Halogenated hydrocarbons
W: W) Amines
X: X) Esters
Y: Y) Alcohols
Z: Z) Halogenated hydrocarbons
Answer: X) X) Esters
To the nearest whole number, how many minutes does it take for the earth to rotate through one degree of longitude?
Acceptable Answers:
Approximately what percent of global energy production currently comes from renewable sources? W) 1% X) 5% Y) 16% Z) 20%
W: W) 1%
X: X) 5%
Y: Y) 16%
Z: Z) 20%
Answer: Y) Y) 16%
What greenhouse gas is the simplest hydrocarbon?
Acceptable Answers:
What is the process of comparing a property of an object to a well-defined and agreed-upon referent? W) Generalizing X) Measurement Y) Graphing Z) Scientific Investigation
W: W) Generalizing
X: X) Measurement
Y: Y) Graphing
Z: Z) Scientific Investigation
Answer: X) X) Measurement
What law or principle relates the applied force to the amount of elongation in a spring when these quantities are linearly related?
Acceptable Answers:
You spend a total of \$21.43 at the store, but want to return an item with marked price \$5.00. If the sales tax is 7%, how much will you receive back for the item?
Acceptable Answers:
From a 7-cup package, a cat eats 1 ^3⁄5 cups of food on Tuesday and 2 ¾ cups on Wednesday. How many cups are left in the package?
Acceptable Answers:
Female members of what order of animals contain pouches used to complete development of their young?
Acceptable Answers:
What structures, composed of flexible tissue, connect two or more bones together at joints?
Acceptable Answers:
What type of map or chart is commonly used in navigation to eliminate distortion? W) Sextant X) Latitudinal Chart Y) North-up Map Z) Mercator Projection
W: W) Sextant
X: X) Latitudinal Chart
Y: Y) North-up Map
Z: Z) Mercator Projection
Answer: Z) Z) Mercator Projection
What is the SI base unit for measuring temperature?
Acceptable Answers:
DO NOT ACCEPT:
When a group of living organisms and non-living components in an environment interact as a system, what is the system called?
Acceptable Answers:
What dark areas occur on the Sun due to intense magnetic activity?
Acceptable Answers:
Which of the following is common to both bacteria and viruses? W) Metabolism X) Ribosomes Y) Nucleic acids Z) Cell division
W: W) Metabolism
X: X) Ribosomes
Y: Y) Nucleic acids
Z: Z) Cell division
Answer: Y) Y) Nucleic acids
What molecule is released from muscles as a waste product, transported to the lungs in blood, and exhaled as a gas?
Acceptable Answers:
Under what conditions does the behavior of real gases deviate most from that predicted by the ideal gas law? W) Low pressure, low temperature X) High pressure, low temperature Y) Low pressure, high temperature Z) High pressure, high temperature
W: W) Low pressure, low temperature
X: X) High pressure, low temperature
Y: Y) Low pressure, high temperature
Z: Z) High pressure, high temperature
Answer: X) X) High pressure, low temperature
A cubic meter is a measure of which of the following? W) Weight X) Mass Y) Distance Z) Volume
W: W) Weight
X: X) Mass
Y: Y) Distance
Z: Z) Volume
Answer: Z) Z) Volume
The sum of two numbers is 16. Their difference is 2. What are the numbers?
Acceptable Answers:
Given that x represents a number for which the denominator is defined, simplify the expression $$\frac{x^2 + 4x + 4}{x^2 - x - 6}\,. $$
Acceptable Answers:
When creating electric current using steam, the electric generator is attached to what type of equipment that catches the steam to rotate the generator?
Acceptable Answers:
What type of alternative energy production relies on energy provided by the Moon rather than energy provided by the Sun?
Acceptable Answers:
Place the following three polyhedra in increasing order of the number of faces: 1) Tetrahedron; 2) Dodecahedron; 3) Octahedron.
Choices:
Correct Order:
Triangle ABC is similar to Triangle DEF. If AB = 4, DE = 10, and EF = 15, what is the length of BC?
Acceptable Answers:
The region of the atmosphere closest to the Earth’s surface is the: W) Thermosphere X) Ionosphere Y) Troposphere Z) Stratosphere
W: W) Thermosphere
X: X) Ionosphere
Y: Y) Troposphere
Z: Z) Stratosphere
Answer: Y) Y) Troposphere
The temperature in the stratosphere increases with altitude due to absorption of what type of radiation? W) Microwave X) Infrared Y) Visible Z) Ultraviolet
W: W) Microwave
X: X) Infrared
Y: Y) Visible
Z: Z) Ultraviolet
Answer: Z) Z) Ultraviolet
To what class do humans belong?
Acceptable Answers:
Imagine that you conducted an experiment where you tested the effects of different fertilizers on plant growth over the course of one month. You have to present your data in a graph. What variable would you plot on the y-axis? W) Time of year X) Type of fertilizer Y) Day of experiment Z) Plant height
W: W) Time of year
X: X) Type of fertilizer
Y: Y) Day of experiment
Z: Z) Plant height
Answer: Z) Z) Plant height
How many nodes are found in a 1s orbital?
Acceptable Answers:
To the nearest degree, how many degrees Fahrenheit is equivalent to 283 Kelvin? W) 25 X) 46 Y) 50 Z) 58
W: W) 25
X: X) 46
Y: Y) 50
Z: Z) 58
Answer: Y) Y) 50
What is the term for the time required for a vibrating object to complete one full cycle?
Acceptable Answers:
The ejection of an alpha particle from a nucleus results in which of the following? W) An increase in the atomic number by one X) An increase in the mass number by four Y) A decrease in the atomic number by two Z) A decrease in the mass number by two
W: W) An increase in the atomic number by one
X: X) An increase in the mass number by four
Y: Y) A decrease in the atomic number by two
Z: Z) A decrease in the mass number by two
Answer: Y) Y) A decrease in the atomic number by two
Clean coal research is currently NOT focused on which of the following? W) Improving the purity of coal ore X) Increasing efficiency of power plants using coal Y) Capturing carbon generated when burning coal Z) Reusing carbon dioxide generated when burning coal
W: W) Improving the purity of coal ore
X: X) Increasing efficiency of power plants using coal
Y: Y) Capturing carbon generated when burning coal
Z: Z) Reusing carbon dioxide generated when burning coal
Answer: W) W) Improving the purity of coal ore
As an energy source, fuel cells have all of the following advantages over conventional sources except for which one? W) Virtually pollution free X) Operate very quietly Y) Highly efficient Z) Low cost
W: W) Virtually pollution free
X: X) Operate very quietly
Y: Y) Highly efficient
Z: Z) Low cost
Answer: Z) Z) Low cost