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Chapter 3 – The Cellular Level of Organization
Cell Mates
Something
Selectively
Permeable
Heads or
Tails
Cell Cycle
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Alphabet
Soup
FINAL ROUND
Cell Mates:
$100 Question
What does the presence of many mitochondria
imply about a cell’s energy requirements?
a. A high demand for energy
b. A low demand for energy
c. Fluctuating energy needs requiring flexibility
d. Number of mitochondria provides no implication
of energy needs.
ANSWER
BACK TO GAME
Cell Mates:
$100 Answer
What does the presence of many mitochondria
imply about a cell’s energy requirements?
a. A high demand for energy
b. A low demand for energy
c. Fluctuating energy needs requiring flexibility
d. Number of mitochondria provides no implication
of energy needs.
BACK TO GAME
Cell Mates:
$200 Question
Cells lining the small intestine have numerous
fingerlike projections on their free surface. What
are these structures, and what is their function?
a. microvilli; move substances across the
cell surface
b. microvilli; increase cell’s surface area
and absorptive ability
c. cilia; increase cell’s surface area and
absorptive ability
d. cilia; move substances across
ANSWER
cell surface
BACK TO GAME
Cell Mates:
$200 Answer
Cells lining the small intestine have numerous
fingerlike projections on their free surface. What
are these structures, and what is their function?
a. microvilli; move substances across the
cell surface
b. microvilli; increase cell’s surface area
and absorptive ability
c. cilia; increase cell’s surface area and
absorptive ability
d. cilia; move substances across
cell surface
BACK TO GAME
Cell Mates:
$300 Question
Certain cells in the ovaries and testes contain
large amounts of smooth endoplasmic reticulum
(SER). Why?
a. to produce large amounts of proteins
b. to digest materials quickly
c. to store large amounts of hormones
d. to produce large amounts of steroid
ANSWER
hormones
BACK TO GAME
Cell Mates:
$300 Answer
Certain cells in the ovaries and testes contain
large amounts of smooth endoplasmic reticulum
(SER). Why?
a. to produce large amounts of proteins
b. to digest materials quickly
c. to store large amounts of hormones
d. to produce large amounts of steroid
hormones
BACK TO GAME
Cell Mates:
$400 Question
Which of the listed organelles is nonmembranous and correctly paired with its
function?
a. Microvilli / movement of materials over
cells surface
b. Ribosomes / protein synthesis
c. Mitochondria / produces ATP required by
cell
d. Microtubules / increase surface
ANSWER
area for absorption
BACK TO GAME
Cell Mates:
$400 Answer
Which of the listed organelles is nonmembranous and correctly paired with its
function?
a. Microvilli / movement of materials over
cells surface
b. Ribosomes / protein synthesis
c. Mitochondria / produces ATP required by
cell
d. Microtubules / increase surface
area for absorption
BACK TO GAME
Cell Mates:
$500 Question
Which statement correctly distinguishes between
cytoplasm and cytosol?
a. Cytosol has a higher concentration of
suspended proteins than cytoplasm.
b. Cytosol is the intracellular fluid and is composed
of nutrients, ions, proteins, and wastes and
cytoplasm is the term for all material located
between the cell membrane and nucleus.
c. Potassium ion concentration is higher in
cytoplasm than in cytosol.
d. Cytosol and cytoplasm refer to the
ANSWER
same substance.
BACK TO GAME
Cell Mates:
$500 Answer
Which statement correctly distinguishes between
cytoplasm and cytosol?
a. Cytosol has a higher concentration of
suspended proteins than cytoplasm.
b. Cytosol is the intracellular fluid and is composed
of nutrients, ions, proteins, and wastes and
cytoplasm is the term for all material located
between the cell membrane and nucleus.
c. Potassium ion concentration is higher in
cytoplasm than in cytosol.
d. Cytosol and cytoplasm refer to the
same substance.
BACK TO GAME
Something Selectively Permeable:
$100 Question
Which component of the cell membrane is
primarily responsible for the membrane’s ability
to form a physical barrier between the cell’s
internal and external environments?
a. Phospholipid bilayer
b. Glycocalyx
c. Peripheral proteins
d. proteoglycans
ANSWER
BACK TO GAME
Something Selectively Permeable:
$100 Answer
Which component of the cell membrane is
primarily responsible for the membrane’s ability
to form a physical barrier between the cell’s
internal and external environments?
a. Phospholipid bilayer
b. Glycocalyx
c. Peripheral proteins
d. proteoglycans
BACK TO GAME
Something Selectively Permeable:
$200 Question
During digestion in the stomach, the
concentration of hydrogen ions (H+) rises to
many times that of cells in the stomach. Which
transport process must be operating?
a. facilitated diffusion
b. osmosis
c. active transport
d. endocytosis
ANSWER
BACK TO GAME
Something Selectively Permeable:
$200 Answer
During digestion in the stomach, the
concentration of hydrogen ions (H+) rises to
many times that of cells in the stomach. Which
transport process must be operating?
a. facilitated diffusion
b. osmosis
c. active transport
d. endocytosis
BACK TO GAME
Something Selectively Permeable:
$300 Question
Which pair of the following methods of carriermediated transport is paired with its function?
a. Active transport / it is dependent on a
concentration gradient
b. Facilitated diffusion/ substances are
bound to a receptor and passed across
the cell membrane by carrier proteins
c. Sodium-potassium pump / moves Na
outside the cell and K inside the cell
ANSWER
d. B and C are correct.
BACK TO GAME
Something Selectively Permeable:
$300 Answer
Which pair of the following methods of carriermediated transport is paired with its function?
a. Active transport / it is dependent on a
concentration gradient
b. Facilitated diffusion/ substances are
bound to a receptor and passed across
the cell membrane by carrier proteins
c. Sodium-potassium pump / moves Na
outside the cell and K inside the cell
d. B and C are correct.
BACK TO GAME
Something Selectively Permeable:
$400 Question
What is/are the major difference(s) between
cytosol and extracellular fluid?
a. Cytosol has a higher concentration of
sodium ions.
b. ECF is a transport medium only,
whereas cytosol has some
carbohydrates and amino acids.
c. Cytosol has a higher concentration of
potassium ions.
ANSWER
d. B and C are correct.
BACK TO GAME
Something Selectively Permeable:
$400 Answer
What is/are the major difference(s) between
cytosol and extracellular fluid?
a. Cytosol has a higher concentration of
sodium ions.
b. ECF is a transport medium only,
whereas cytosol has some
carbohydrates and amino acids.
c. Cytosol has a higher concentration of
potassium ions.
d. B and C are correct.
BACK TO GAME
Something Selectively Permeable:
$500 Question
Define “selectively-permeable” as it applies to
the cell membrane.
a. It is a membrane through which nothing can pass.
b. It is a membrane that allows the free passage of
some molecules, but restricts the passage of
others.
c. It is a membrane through which any substance can
pass without restriction.
d. It is a membrane that only allows
ANSWER
substances though by active transport.
BACK TO GAME
Something Selectively Permeable:
$500 Answer
Define “selectively-permeable” as it applies to
the cell membrane.
a. It is a membrane through which nothing can pass.
b. It is a membrane that allows the free passage of
some molecules, but restricts the passage of
others.
c. It is a membrane through which any substance can
pass without restriction.
d. It is a membrane that only allows
substances though by active transport.
BACK TO GAME
Heads or Tails:
$100 Question
Which type of integral protein allows water
and small ions to pass through the cell
membrane?
a. receptor proteins
b. carrier proteins
c. channel proteins
d. recognition proteins
ANSWER
BACK TO GAME
Heads or Tails:
$100 Answer
Which type of integral protein allows water
and small ions to pass through the cell
membrane?
a. receptor proteins
b. carrier proteins
c. channel proteins
d. recognition proteins
BACK TO GAME
Heads or Tails:
$200 Question
If the cell membrane were freely
permeable to sodium ions (Na+), how
would the transmembrane potential be
affected?
a. It would not change.
b. It would become more positive.
c. It would become more negative.
d. It would become unstable.
ANSWER
BACK TO GAME
Heads or Tails:
$200 Answer
If the cell membrane were freely
permeable to sodium ions (Na+), how
would the transmembrane potential be
affected?
a. It would not change.
b. It would become more positive.
c. It would become more negative.
d. It would become unstable.
BACK TO GAME
Heads or Tails:
$300 Question
All methods of carrier-mediated transport have
the following characteristics __.
a. Concentration gradients, transmembrane
potential, and resting potential.
b. Specificity, saturation limits, and
regulation
c. Endocytosis, exocytosis, and pinocytosis
d. Isotonic, hypertonic, and hypotonic
ANSWER
solutions
BACK TO GAME
Heads or Tails:
$300 Answer
All methods of carrier-mediated transport have
the following characteristics __.
a. Concentration gradients, transmembrane
potential, and resting potential.
b. Specificity, saturation limits, and
regulation
c. Endocytosis, exocytosis, and pinocytosis
d. Isotonic, hypertonic, and hypotonic
solutions
BACK TO GAME
Heads or Tails:
$400 Question
Some pediatricians recommend the use of a 10% salt
solution to relieve congestion for infants with stuffy
noses. What effect would such a solution have on the
cells lining the nasal cavity, and why?
a. Cells will lose water because this is a hypertonic
solution.
b. Cells will lose water because this is a hypotonic
solution.
c. Cells with gain water because this is a
hypertonic solution.
d. Cells will gain water because this is a
ANSWER
hypotonic solution.
BACK TO GAME
Heads or Tails:
$400 Answer
Some pediatricians recommend the use of a 10% salt
solution to relieve congestion for infants with stuffy
noses. What effect would such a solution have on the
cells lining the nasal cavity, and why?
a. Cells will lose water because this is a hypertonic
solution.
b. Cells will lose water because this is a hypotonic
solution.
c. Cells with gain water because this is a
hypertonic solution.
d. Cells will gain water because this is a
hypotonic solution.
BACK TO GAME
Heads or Tails:
$500 Question
How would a decrease in the concentration of
oxygen in the lungs affect the diffusion of oxygen
into the blood?
a. decrease in molecule size results in decreased
diffusion
b. decrease in distance results in increased
diffusion
c. increase in electrical forces results in increased
diffusion
d. decrease in gradient size results in
decreased speed of diffusion
ANSWER
BACK TO GAME
Heads or Tails:
$500 Answer
How would a decrease in the concentration of
oxygen in the lungs affect the diffusion of oxygen
into the blood?
a. decrease in molecule size results in decreased
diffusion
b. decrease in distance results in increased
diffusion
c. increase in electrical forces results in increased
diffusion
d. decrease in gradient size results in
decreased speed of diffusion
BACK TO GAME
Cell Cycle:
$100 Question
A cell is actively manufacturing enough
organelles to serve two functional cells.
This cell is probably in which phase of its
cycle?
a. S
b. G1
c. G2
d. M
ANSWER
BACK TO GAME
Cell Cycle:
$100 Answer
A cell is actively manufacturing enough
organelles to serve two functional cells.
This cell is probably in which phase of its
cycle?
a. S
b. G1
c. G2
d. M
BACK TO GAME
Cell Cycle:
$200 Question
During the S phase, which of the following
occur(s)?
a. DNA polymerase binds to exposed
nitrogenous bases
b. DNA replication
c. Synthesis of histone proteins in the
nucleus
d. All of the above are correct
ANSWER
BACK TO GAME
Cell Cycle:
$200 Answer
During the S phase, which of the following
occur(s)?
a. DNA polymerase binds to exposed
nitrogenous bases
b. DNA replication
c. Synthesis of histone proteins in the
nucleus
d. All of the above are correct
BACK TO GAME
Cell Cycle
$300 Question
What would happen if spindle fibers failed
to form in a cell during mitosis?
a. centromeres would not appear
b. nuclear membrane would not
disintegrate
c. chromosomes would not separate
d. chromatin would not condense
ANSWER
BACK TO GAME
Cell Cycle:
$300 Answer
What would happen if spindle fibers failed
to form in a cell during mitosis?
a. centromeres would not appear
b. nuclear membrane would not
disintegrate
c. chromosomes would not separate
d. chromatin would not condense
BACK TO GAME
Cell Cycle:
$400 Question
During DNA replication, a nucleotide is deleted from a
sequence that normally codes for a polypeptide. What
effect will this deletion have on the amino acid sequence
of the polypeptide?
a. No effect, deletion will be skipped
b. No effect, deletion will be automatically repaired
c. Amino acid sequence will disintegrate
d. Amino acid sequence would be altered
ANSWER
BACK TO GAME
Cell Cycle:
$400 Answer
During DNA replication, a nucleotide is deleted from a
sequence that normally codes for a polypeptide. What
effect will this deletion have on the amino acid sequence
of the polypeptide?
a. No effect, deletion will be skipped
b. No effect, deletion will be automatically repaired
c. Amino acid sequence will disintegrate
d. Amino acid sequence would be altered
BACK TO GAME
Cell Cycle:
$500 Question
Which of the following stages of mitosis is
correctly paired with the events of that stage?
a. Anaphase / centromeres of chromatid pairs
separate and daughter chromosomes are
pulled to opposite ends of the cell
b. Prophase / chromatids are aligned along center
of the cell
c. Telophase / chromosomes condense and
nuclear membrane fragments
ANSWER
d. All of the above are correct
BACK TO GAME
Cell Cycle:
$500 Answer
Which of the following stages of mitosis is
correctly paired with the events of that stage?
a. Anaphase / centromeres of chromatid pairs
separate and daughter chromosomes are
pulled to opposite ends of the cell
b. Prophase / chromatids are aligned along center
of the cell
c. Telophase / chromosomes condense and
nuclear membrane fragments
d. All of the above are correct
BACK TO GAME
Alphabet Soup:
$100 Question
When they encounter bacteria, certain
types of white blood cells engulf the
bacteria and bring them into the cell. What
is this process called?
a. pseudocytosis
b. exocytosis
c. pinocytosis
d. phagocytosis
ANSWER
BACK TO GAME
Alphabet Soup:
$100 Answer
When they encounter bacteria, certain
types of white blood cells engulf the
bacteria and bring them into the cell. What
is this process called?
a. pseudocytosis
b. exocytosis
c. pinocytosis
d. phagocytosis
BACK TO GAME
Alphabet Soup:
$200 Question
Each type of cell has a characteristic
resting potential. Which is correct?
a. Fat cell (-40mV)
b. Neurons (-70mV)
c. Cardiac muscle cells (-90mV)
d. All of the above are correct.
ANSWER
BACK TO GAME
Alphabet Soup :
$200 Answer
Each type of cell has a characteristic
resting potential. Which is correct?
a. Fat cell (-40mV)
b. Neurons (-70mV)
c. Cardiac muscle cells (-90mV)
d. All of the above are correct.
BACK TO GAME
Alphabet Soup:
$300 Question
What process would be affected by the
lack of the enzyme RNA polymerase ?
a. Nothing would be affected; DNA
polymerase would take over
b. cell’s ability to duplicate DNA
c. cell’s ability to translate DNA
d. cell’s ability to transcribe DNA
ANSWER
BACK TO GAME
Alphabet Soup:
$300 Answer
What process would be affected by the
lack of the enzyme RNA polymerase ?
a. Nothing would be affected; DNA
polymerase would take over
b. cell’s ability to duplicate DNA
c. cell’s ability to translate DNA
d. cell’s ability to transcribe DNA
BACK TO GAME
Alphabet Soup:
$400 Question
What is the genetic code?
a. It is the method by which proteins code for
amino acids.
b. It is the “language” the cell uses in the form of
triplet codons, which specify individual amino
acids.
c. It is the portion of DNA that contains instructions
for the synthesis of tRNA.
d. It is the strand DNA containing
complementary triplets used for
mRNA production.
ANSWER
BACK TO GAME
Alphabet Soup:
$400 Answer
What is the genetic code?
a. It is the method by which proteins code for
amino acids.
b. It is the “language” the cell uses in the form of
triplet codons, which specify individual amino
acids.
c. It is the portion of DNA that contains instructions
for the synthesis of tRNA.
d. It is the strand DNA containing
complementary triplets used for
mRNA production.
BACK TO GAME
Alphabet Soup:
$500 Question
What are two reasons that mRNA transcription is
so vital?
a. Protein synthesis occurs through transcription /
it occurs very quickly
b. DNA cannot leave the nucleus / transcription
ensures that mRNA exactly matches the coding
strand of the gene
c. It allows formation of chains of amino acids / the
same information is presented in a different
language
ANSWER
d. None of these is correct
BACK TO GAME
Alphabet Soup:
$500 Answer
What are two reasons that mRNA transcription is
so vital?
a. Protein synthesis occurs through transcription /
it occurs very quickly
b. DNA cannot leave the nucleus / transcription
ensures that mRNA exactly matches the coding
strand of the gene
c. It allows formation of chains of amino acids / the
same information is presented in a different
language
d. None of these is correct.
BACK TO GAME
FINAL ROUND Question
What is so special about osmosis,
compared with diffusion?
a. Osmosis allows free passage of alcohol, fatty
acids, and steroids through the plasma
membrane.
b. Osmosis is the movement of water rather than
solute.
c. In osmosis, water flows across a membrane
toward the solution that has a higher
concentration of solutes, because that is where
water concentration is lower.
ANSWER
d. B and C are correct
BACK TO GAME
FINAL ROUND Answer
What is so special about osmosis,
compared with diffusion?
a. Osmosis allows free passage of alcohol, fatty
acids, and steroids through the plasma
membrane.
b. Osmosis is the movement of water rather than
solute.
c. In osmosis, water flows across a membrane
toward the solution that has a higher
concentration of solutes, because that is where
water concentration is lower.
d. B and C are correct
BACK TO GAME