PREP EXAM 1 NEWEST VERSION 2025 QUESTIONS AND
ACCURATE DETAILED ANSWERS GRADED A+
A human nerve cell that has an abnormal shape most likely has a
defective
a. cell wall
b. cytoskeleton
c. nucleus
d. ribosome
-Correct Answer-cytoskeleton
Building proteins ___energy; ATP hydrolysis ___ energy.
a. releases; releases
b. requires; requires
c. releases; requires
d. requires; releases
-Correct Answer-d. requires; releases
How do protein contribute to the function of an electron transport chain?
a. they become oxidized and reduced
b. they undergo osmosis
c. they are involved in the hydrolysis of electrons
,d. they consume electrons
-Correct Answer-a. they become oxidized and reduced
Imagine that you place a red food coloring in a glass of water. At first
the red molecules remain concentrated where you placed the drop, but
the color eventually spreads throughout the water. This example
illustrates?
a. hydrolysis
b. decreasing entropy
c. osmosis
d. diffusion
-Correct Answer-Diffusion
A "naked egg" is a chicken egg surrounded only by a semipermeable
membrane (the hard outer shell has been dissolved away during an
extended soak in vinegar). Suppose you place a "naked egg" in pure
water for 24 hours. What will happen to the egg?
a. there will be no change
b. it will swell
c. it will exert turgor pressure against the cell wall
d. it will shrink
-Correct Answer-It will swell
Which of the following represents a series that is ranked from smallest
to largest?
a. Ecosystem population biosphere
,b. Atom molecule cell
C. Tissue organ organism
d. Cell organelle organ
e. Both answers "b" and "c" are correct.
-Correct Answer-e. Both answers "b" and "c" are correct.
Which one of the following statements does not apply to living
organisms?
a. They consist of one of more membrane bound cell.
b. DNA encodes for the reproduction and propagation of every known
species.
c. They maintain a relatively constant internal environment.
d. They are highly organized and are always derived from ancestral
lineages.
e. All of the above statements apply to living organisms.
-Correct Answer-e. All of the above statements apply to living
organisms.
Which of the following statements best describes the nature of a
scientific hypothesis?
a. A hypothesis is an idea that is widely accepted as a description of
objective reality by a majority of scientists.
b. A hypothesis must stand alone, and not be based on prior knowledge.
, c. A scientific hypothesis must be testable through experimentation,
observation or mathematical demonstration.
d. Experiments can be designed that will prove the validity of the
hypothesis.
e. When accepted, a hypothesis becomes scientific law. -Correct
Answer-c. A scientific hypothesis must be testable through
experimentation, observation or mathematical demonstration.
What is the highest level of protein structure exhibited by the functional
hemoglobin molecule, a complex molecule composed of four separate
protein chains?
a. Primary
b. Secondary
c. Tertiary
d. Quaternary
e. All of the above choices "a" through "d" are correct. -Correct Answer-
d. Quaternary
Which one of the following five statements about liquid water is
incorrect?
a. Water covers about two-thirds of Earth's surface.
b. Water moderates temperatures on Earth.
c. Water is the single most abundant component of all living cells.
d. Water has a very high capacity to absorb or release heat energy.
ACCURATE DETAILED ANSWERS GRADED A+
A human nerve cell that has an abnormal shape most likely has a
defective
a. cell wall
b. cytoskeleton
c. nucleus
d. ribosome
-Correct Answer-cytoskeleton
Building proteins ___energy; ATP hydrolysis ___ energy.
a. releases; releases
b. requires; requires
c. releases; requires
d. requires; releases
-Correct Answer-d. requires; releases
How do protein contribute to the function of an electron transport chain?
a. they become oxidized and reduced
b. they undergo osmosis
c. they are involved in the hydrolysis of electrons
,d. they consume electrons
-Correct Answer-a. they become oxidized and reduced
Imagine that you place a red food coloring in a glass of water. At first
the red molecules remain concentrated where you placed the drop, but
the color eventually spreads throughout the water. This example
illustrates?
a. hydrolysis
b. decreasing entropy
c. osmosis
d. diffusion
-Correct Answer-Diffusion
A "naked egg" is a chicken egg surrounded only by a semipermeable
membrane (the hard outer shell has been dissolved away during an
extended soak in vinegar). Suppose you place a "naked egg" in pure
water for 24 hours. What will happen to the egg?
a. there will be no change
b. it will swell
c. it will exert turgor pressure against the cell wall
d. it will shrink
-Correct Answer-It will swell
Which of the following represents a series that is ranked from smallest
to largest?
a. Ecosystem population biosphere
,b. Atom molecule cell
C. Tissue organ organism
d. Cell organelle organ
e. Both answers "b" and "c" are correct.
-Correct Answer-e. Both answers "b" and "c" are correct.
Which one of the following statements does not apply to living
organisms?
a. They consist of one of more membrane bound cell.
b. DNA encodes for the reproduction and propagation of every known
species.
c. They maintain a relatively constant internal environment.
d. They are highly organized and are always derived from ancestral
lineages.
e. All of the above statements apply to living organisms.
-Correct Answer-e. All of the above statements apply to living
organisms.
Which of the following statements best describes the nature of a
scientific hypothesis?
a. A hypothesis is an idea that is widely accepted as a description of
objective reality by a majority of scientists.
b. A hypothesis must stand alone, and not be based on prior knowledge.
, c. A scientific hypothesis must be testable through experimentation,
observation or mathematical demonstration.
d. Experiments can be designed that will prove the validity of the
hypothesis.
e. When accepted, a hypothesis becomes scientific law. -Correct
Answer-c. A scientific hypothesis must be testable through
experimentation, observation or mathematical demonstration.
What is the highest level of protein structure exhibited by the functional
hemoglobin molecule, a complex molecule composed of four separate
protein chains?
a. Primary
b. Secondary
c. Tertiary
d. Quaternary
e. All of the above choices "a" through "d" are correct. -Correct Answer-
d. Quaternary
Which one of the following five statements about liquid water is
incorrect?
a. Water covers about two-thirds of Earth's surface.
b. Water moderates temperatures on Earth.
c. Water is the single most abundant component of all living cells.
d. Water has a very high capacity to absorb or release heat energy.
