Biology
Which two monosaccharides make up the disaccharide lactose?
glucose and galactose
What group of elements react violently with water and have one electron in their valence shell?
Alkali Metals
Brian drives from his home to work, and then back home in a total of 3 hours. In miles per hour, what is the average velocity of his round trip, if his home and work are separated by 60 miles?
0
A right circular cylinder has a radius of 3 and a height of 12. A second right circular cylinder has a radius of 5 and a height of 7. What is the larger lateral surface area of the two cylinders?
72pi
Which of the following is lease likely to be found in a desert climate?
W) A plant with broad flat leaves
X) A plant with few leaves
Y) A plant with thick fleshy leaves
Z) A plant with thin needle-like leaves
W) A plant with broad flat leaves
Which of the following proteins exhibits quaternary structure?
W) Myoglobin
X) Adenosine
Y) Hemoglobin
Z) Bilirubin
Y) Hemoglobin
Which of the following compounds will be most soluble in water at 50 degrees Celsius?
W) Sucrose
X) Calcium Carbonate
Y) Vegetable Oil
Z) Benzene
W) Sucrose
An object has fallen 30 meters in the past 2 seconds. To the nearest meter per second, what is its current vertical speed?
25
If a 40-degree sector of a circle has area 30 pi, then, to the nearest whole number, what is the radius of the circle?
16
What is the chemical formula of the mineral quartz?
SiO2
How many glycerol molecules are the fatty acids in a triglyceride molecule bound to?
1
Which of the three elements does methylamine contain?
1. Carbon, 2. Oxygen, 3. Nitrogen
1 and 3
Which of the following quantities related to a light wave increases with increasing energy carried by each photon?
W) Frequency
X) Speed
Y) Wavelength
Z) Amplitude
W) Frequency
If x varies inversely as the square root of y and x equals 10 when y equals 4, what is the value of x when y = 49?
20/7
What type of volcano is Mt. Fuji in Japan?
W) Cinder Cone
X) Volcanic Dome
Y) Shield
Z) Stratovolcano
Z) Stratovolcano
In mammals, the major thermoregulatory center is in what part of the brain?
Hypothalamus
What is the general term for compounds used in titrations that react with acids or bases to produce a color change?
Indicators
Which property of a sound wave is associated with loudness?
Amplitude
A triangle has sides of length 10, 10, and 4. Connecting the midpoints of the sides of this triangle forms a smaller triangle. What is the perimeter of the smaller triangle?
12
Researchers at Princeton Plasma Physics Lab are studying a structure composed of gas and dust surrounding and feeding the Sagitarrius A-star black hole. What is the name given to such a disk of material?
Accretion Disk
Which of the following 4 statements are true about macromolecules:
1) There are 3 hydrogen bonds between Adenine and Thymine while there are only 2 between Guanine and Cytosine
2) Cytosine and Guanine are Pyrimidines
3) Hydrogen bonding plays a major role in secondary protein structure
4) Cysteine forms disulfide bonds
3 and 4
Scientists at Lawrence Livermore National Laboratory have developed a laser-based tabletop device to measure carbon-14 concentrations. Biological samples must be homogenized, dried, and combusted before they are measured. In what compound does the spectrometer measure the carbon-14 abundance?
Carbon Dioxide (CO2)
For an inelastic collision, identify all of the following three quantities that are conserved: 1) Momentum; 2) Kinetic energy; 3) Total energy.
1 and 3
How many edges does a regular dodecahedron have?
30
What spectral class is classified by the strongest hydrogen Balmer lines?