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College Environmental Science
Which of the following are indicators of an improving quality life for humans?
  1. air and water quality is improving
  2. food supply is getting more abundant and safer
  3. Grasslands and wetlands are being restored
  4. decreased infant mortality
  5. All of the above
College Matter
What branch of science that studies composition, structure, and properties of matter?
  1. anatomy
  2. biology
  3. chemistry
  4. physics
  5. entomology
College Biochemical Pathways
1. One of the most abundant proteins on Earth, aids in carbon fixation
2. The enzyme for one of the earliest steps in glycolysis, is highly regulated in mammals
  1. NADH, NADPH
  2. FAD, FADH2
  3. Phosphofructokinase, ATP synthase
  4. Rubisco, ATP synthase
  5. Rubisco, Phosphofructokinase
College Nervous and Endocrine Systems
Acetylcholinesterase is the enzyme that degrades acetylcholine. What effect on nerve transmission would occur following the administration of a chemical that inhibited acetylcholinesterase?
  1. Synaptic transmission would be prevented, causing muscle paralysis.
  2. It would be similar to giving an anesthetic, but it would last permanently.
  3. Continuous excitatory postsynaptic potentials would occur in the postsynaptic muscle fiber.
  4. The presynaptic neuron would be inactivated.
College Nervous and Endocrine Systems
What is the difference between a neuron and a nerve?
  1. One has sensory functions, the other has motor functions.
  2. Nerves are found only in the central nervous system.
  3. Nerves are found only in vertebrates.
  4. One is a single cell while the other is a collection of different cell types.
College Nervous and Endocrine Systems
Tastes and smells are distinct kinds of environmental information in that                                                                                                      .
  1. distinguishing tastant molecules requires learning, whereas smell discrimination is an innate process
  2. humans can detect many more types of tastants than odorants
  3. odorants are airborne, and tastants are present in fluids
  4. odorants bind to receptor proteins, but none of the tastant stimuli will bind to receptors
College Magnetism and Electricity
What's NOT an electrostatic law?
  1. Repulsion-Attraction
  2. Inverse Square Law
  3. Penetration
  4. Concentration
College Magnetism and Electricity
The greatest of charge will be on the surface where the curvature is sharpest correlates to what electrostatic law?
  1. Concentration
  2. Distribution
  3. Inverse Square Law
  4. Repulsion-Attraction
College Macromolecules
Select all those that are properties of a protein.
  1. The monomer an amino acid
  2. Among proteins functions are structure, defense, and breakdown of particles.
  3. Proteins act as catalysts.
  4. Amino acids are joined by peptide bonds.
  5. A long chain of amino acids is called a polypeptide.
College Atmosphere
Air near Earth's surface tends to be which of the following?
  1. Warmer and wetter, then it rises, expanding and cooling
  2. Warmer and drier; then it rises, condensing and gathering moisture
  3. Cooler and wetter; then it rises, is warmed by the Sun, and sinks again
  4. Cooler and drier; it rises when it is displaced by sinking warm air
  5. Warmer; it rises as it is displaced by Coriolis forces
College Evolution
In a cladogram, the outgroup is the organism that has
  1. the shared derived characters
  2. the shared primitive character
  3. both the shared primitive character and shared derived characters
  4. new traits
  5. none of the above
College Skin, Skeleton, and Muscles
During the contraction of a vertebrate skeletal muscle fiber, calcium ions                                                                                             .
  1. transmit action potentials from the motor neuron to the muscle fiber
  2. spread action potentials through the T tubules
  3. bind with troponin, changing its shape so that the myosin-binding sites on actin are exposed
  4. break cross-bridges by acting as a cofactor in ATP hydrolysis
College Skin, Skeleton, and Muscles
Which of the following statements about muscle contraction is correct?
  1. Actin filaments stretch whereas myosin filaments stay the same length.
  2. Iron and fats bound to actin play a critical role in muscle cell contraction and relaxation
  3. Neither actin nor myosin change in size, although the area of overlap between them increases.
  4. Myosin filaments stretch where actin filaments stay the same length.
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