What the Earth and Space
Multiple Choice: Halley’s Comet, a famous short-period comet, was last visible from Earth in 1986. In which of the following years will it be visible from Earth again?
W) 2016
X) 2061
Y) 2099
Z) 2260
X) 2061
Multiple Choice: Which of the following is NOT an effect of the sympathetic nervous system?
W) Stimulation of glucose release
X) Inhibition of salivation
Y) Relaxation of bronchi
Z) Constriction of pupils
Z) CONSTRICTION OF PUPILS
Multiple Choice: Which of the following animals is NOT extinct?
W) Tasmanian wolf
X) Passenger pigeon
Y) Red wolf
Z) Dodo
Y) RED WOLF
Multiple Choice: Which of the following types of seismic waves are S waves?
W) Shear
X) Surface
Y) Compressional
Z) Tsunami
W) SHEAR
Multiple Choice: Which of the following is the minimum amount of energy needed to start a chemical reaction?
W) Production X) Reaction Y) Activation Z) Catalytic
Y) ACTIVATION
Short Answer: What is the name of the group of large fissure basalt flows found covering a great portion of the Pacific Northwest?
COLUMBIA RIVER BASALTS
Multiple Choice: Which of the following properties of water allow tall trees to transport water to the canopy?
W) Hydrolytic action
X) Adhesion and cohesion
Y) Ionic bonding
Z) Salt gradient
X) ADHESION AND COHESION
Multiple Choice: Of the following salts, which is the least soluble in water?
W) Magnesium nitrate
X) Sodium acetate
Y) Lead perchlorate
Z) Lead chromate
Z) LEAD CHROMATE
Multiple Choice: Burning which of the following produces the least amount of carbon dioxide per unit of energy?
W) Coal X) Oil Y) Natural gas Z) Wood
Y) NATURAL GAS
Multiple Choice: For which of the following reasons is baking soda a good substance for putting out a grease fire?
W) It cools the area
X) It soaks up the grease
Y) It deprives the fire of oxygen
Z) It removes all the components of a fire
Y) IT DEPRIVES THE FIRE OF OXYGEN
Short Answer: When a meteoroid passes through Earth’s atmosphere, what is the term for the transient visible streak in the sky it leaves behind?
METEOR (ACCEPT: SHOOTING STAR, FALLING STAR)
Short Answer: What is the term for the RNA sequences between exons that are removed before translation in eukaryotic [yoo-KAR-ee-oh-tik] cells?
INTRONS
Multiple Choice: Which of the following is the name for a plant hormone produced primarily in root tips?
W) Auxin [AWK-sin]
X) Cytokinin [sy-tuh-KY-nin]
Y) Ethylene [ETH-uh-leen]
Z) Gibberellin [jib-uh-REL-in]
X) CYTOKININ
Multiple Choice: Which of the following is used to focus sunlight to a specific point in solar panels?
W) Heliostats
X) Concave mirrors
Y) Convex mirrors
Z) Diffuse mirrors
W) HELIOSTATS
Multiple Choice: Which of the following solutions could be used to titrate an oxalic acid solution?
W) Hydrogen bromide X) Calcium nitrate
Y) Sodium hydroxide Z) Ammonium chloride
Y) SODIUM HYDROXIDE
Short Answer: What layer separates the crust and the mantle?
MOHOROVICIC DISCONTINUITY (ACCEPT: MOHO)
Short Answer: You have isolated a very small segment of DNA from the remains of an organism and would like to make many copies of it so that you can determine its identity. What commonly used tool in molecular biology are you most likely to use to amplify this DNA segment for further testing?
PCR (ACCEPT: POLYMERASE CHAIN REACTION)
Multiple Choice: Bacteria are surviving in an anaerobic environment. The lack of oxygen forces the cells to generate which of the following via fermentation?
W) NAD+
X) NADH
Y) FAD+
Z) FADH2
W) NAD+
Multiple Choice: Which of the following is the type of moderator used in the reactor in Chernobyl, Ukraine?
W) Fast neutron
X) Composite
Y) Light water
Z) Graphite
Z) GRAPHITE
Multiple Choice: A student observes her weight on a scale as she rides an elevator down 3 stories. What happens to her observed weight during the ride?
W) Her weight stays the same, but it is less than her weight on the ground
X) Her weight stays the same, and it equals her weight on the ground
Y) First she weighs less, then the same, then more than her weight on the ground
Z) First she weighs more, then the same, then less than her weight on the ground
Y) FIRST SHE WEIGHS LESS, THEN THE SAME, THEN MORE THAN HER WEIGHT ON THE GROUND
Multiple Choice If the Earth were to suddenly gain mass, it would need to do which of the following in order to maintain its current distance from the Sun?
W) Accelerate
X) Decelerate
Y) Increase the eccentricity of its orbit
Z) Nothing
Z) NOTHING
Multiple Choice Which of the following is the most practical method that could be used to isolate proteins for reinjection into mice?
W) Western blot
X) Affinity chromatography
Y) X-ray crystal diffraction
Z) NMR
X) AFFINITY CHROMATOGRAPHY
Short Answer: A single-subunit protein folds into a single, giant alpha helix. If there are 3.6 amino acids per turn of the alpha helix and there are 3791 water molecules formed during the synthesis of this protein, then how many full alpha helical turns are there in the protein?
1053
Multiple Choice: Kirchhoff's voltage law states that which of the following is true?
W) The sum of voltages in a closed path is equal to zero
X) The power produced by sources must be equal to the power used by appliances
Y) The sum of currents in a node is equal to zero
Z) The voltage in a resistor is equal to the current times the value of the circuit's resistance
W) THE SUM OF VOLTAGES IN A CLOSED PATH IS EQUAL TO ZERO
Multiple Choice Two objects, each with a mass of 1 kilogram, are moving directly towards each other at 20 meters per second before they collide perfectly inelastically. What will be the impulse in kilogram meters per second on the first object?
W) 0 X) 20 Y) 40 Z) 80
X) 20