A strip of potato in rich sugar solution will gain water by osmosis.
True
False
2. False
What is true about an oxidizing element?
Its oxidation number increases.
Its oxidation number doesn’t change.
It is oxidized by another agent.
It loses electrons.
It is reduced by another agent.
5. It is reduced by another agent.
Imagine a car with a negative velocity and negative acceleration. Is the speed increasing, decreasing, or staying the same?
Increasing
William James is best known as the founder of…
Rationalism
Evolutionism
Structuralism
Behaviorism
Functionalism
5. Functionalism
Teachers noticed that several students are sucking their thumb due to the pressure of college. Which of the following defense mechanisms best explain the students’ behavior?
Regression
Reaction formation
Sublimation
Rationalization
Projection
If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited?
Movement of oxygen into a cell
Movement of water through aquaporins
Passage of solute against its concentration gradient
Facilitated diffusion of a permeable substance
3. Passage of solute against its concentration gradient
In which of the following situations is a reaction spontaneous?
Gibbs free energy is positive.
Gibbs free energy is negative.
It’s an endergonic reaction.
Entropy is negative and enthalpy is positive.
Entropy is positive.
2. Gibbs free energy is negative.
Given only the constant net force on an object and the object’s net displacement, which of the following quantities can be calculated?
The net change in the object’s potential energy
The net change in the object’s kinetic energy
The net change in the object’s mechanical energy
The net change in the object’s velocity
2. The net change in the object’s kinetic energy
Susan is having a hard time learning Italian because she always has a Spanish class before learning Italian. This is an example of…
Positive punishment
Negative punishment
Retroactive interference
Anterograde amnesia
Proactive interference
5. Proactive interference
Which of the following processes does entropy decrease?
H2O(s) → H2O(l)
Br2(l) → Br2(g)
Thermal expansion of a balloon filled with CO2(g)
Crystallization of I2(s) from an ethanol solution
4. Crystallization of I2(s) from an ethanol solution
Which of the following describes a metabolic consequence of a shortage of oxygen in muscle cells?
A buildup of lactic acid in the muscle tissue due to fermentation
No ATP production due to the absence of substrate-level phosphorylation
An increase in blood pH due to the accumulation of lactic acid
A decrease in the oxidation of fatty acids due to a shortage of ATP
1. A buildup of lactic acid in the muscle tissue due to fermentation
Which of the following equations represents a reaction for which the standard entropy change is positive?
3 O2(g) → 2 O3(g)
2 H2(g) + O2(g) → 2 H2O(l)
CaCO3(s) → CaO(s) + CO2(g)
I2(g) + 2 K(s) → 2 KI(s)
3. CaCO3(s) → CaO(s) + CO2(g)
A sphere, a cube, and a cylinder, all of equal mass, are released from rest from the top of a short incline. The objects do not rotate when released, but rather slide with negligible friction. Which reaches the base of the incline first?
the sphere
the cube
the cylinder
All reach the base at the same time.
The answer depends on the relative sizes of the objects.
4. All reach the base at the same time.
A seizure can be caused by a loss of cells that secrete…
GABA
Which of the following best describes the role of ribosomes located in the rough endoplasmic reticulum?
They contribute the raw materials required for the synthesis of proteins.
They package proteins for export from the cell.
They are the location where proteins are synthesized.
They contain enzymes that cut and activate proteins.
3. They are the location where proteins are synthesized.
Which of the following best describes the function of the coenzymes NAD+ and FAD in eukaryotic cellular respiration?
They participate in hydrolysis reactions by accepting protons from water molecules.
They participate directly in the phosphorylation of ADP to ATP.
They aid vitamins such as niacin in the breakdown of glucose.
They accept electrons during redox reactions.
4. They accept electrons during redox reactions.
Which of the following correctly identifies which has the higher first-ionization energy, Cl or Ar, and supplies the best justification?
Ar, because of its higher effective nuclear charge
Ar, because of its completely filled valence shell
Cl, because of its higher electron affinity
Cl, because of its higher electronegativity
1. Ar, because of its higher effective nuclear charge
Which of the following conditions will ensure that angular momentum is conserved?
I. Conservation of linear momentum
II. Zero net external force
III. Zero net external torque
III only
In which part of the brain is Broca’s area located?
Left frontal lobe
Objects 1 and 2 have the same momentum. Object 1 can have more kinetic energy than object 2 if, compared with object 2, it…
Has more mass
Has the same mass
Is moving at the same speed
Is moving slower
Is moving faster
5. Is moving faster
Pre-mRNA → mRNA
Which of the following best describes an event during the process above?
A new RNA molecule is synthesized using a DNA template.
A new polypeptide is synthesized using an RNA template.
Thymine nucleotides in an RNA molecule are replaced with uracil nucleotides.
Noncoding sequences are removed from a newly synthesized RNA molecule.
4. Noncoding sequences are removed from a newly synthesized RNA molecule.
HF(aq) ↔ H+(aq) + F−(aq)
100 mL of 1.0 M NaF is added to the system above. In which direction will the reaction
Proceed?
Q <K, and the reaction will shift to the left to produce more reactants and use up products.
Q>K, and the reaction will shift to the left to produce more reactants and use up products.
Q <K, and the reaction will shift to the right to produce more products and use up reactants.
Q >K, and the reaction will shift to the right to produce more products and use up reactants.
2. Q>K, and the reaction will shift to the left to produce more reactants and use up products.
A student is asked to determine the mass of Jupiter. Knowing which of the following about Jupiter and one of its moons will allow the determination to be made?
The time it takes for Jupiter to orbit the Sun
The time it takes for the moon to orbit Jupiter
The average distance between the moon and Jupiter
II and III
Which theory explains how we distinguish high-pitched sounds?
Trichromatic theory
Place theory
Signal detection theory
Frequency theory
Opponent-process theory
2. Place theory
Increasing the temperature of an exothermic reaction results in…
More products and fewer reactants
More reactants and products
More reactants and fewer products
Fewer reactants and products
3. More reactants and fewer products