BIO 111 Final Exam Review UPDATED
ACTUAL Questions and CORRECT
Answers
The volume and surface area for three different cells are listed in the following table:
Volume Surface Area
Cell 1
9.3 μm3 26.5 μm2
Cell 2
12.2 μm3 37.1 μm2
Cell 3
17.6 μm3 40.6 μm2
Based on data from the table above, which cell will be able to eliminate wastes most efficiently?
- CORRECT ANSWER Cell 2 because it has the highest ratio of surface area to volume,
which facilitates the exchange of materials between a cell and its environment.
Which two functional groups are always found in amino acids? - CORRECT
ANSWER carboxyl and amino groups
Vinblastine, a drug that inhibits microtubule polymerization, is used to treat some forms of
cancer. Cancer cells treated with vinblastine would most likely be unable to perform which of the
following cellular functions? - CORRECT ANSWER separate chromosomes during cell
division
How many amino acids and peptide bonds does a tetrapeptide have? - CORRECT
ANSWER four amino acids and three peptide bonds
, Examination of a cell by transmission electron microscopy reveals a high density of ribosomes in
the cytoplasm. This observation suggests that the cell is actively producing large amounts of
which of the following molecules? - CORRECT ANSWER Proteins
Bombardier beetles can spray a boiling hot liquid that contains irritating chemicals, which is
used as a defense mechanism against its enemies. The beetles store two sets of chemicals
separately in their glands. Using what you learned about chemistry, what is a possible
explanation for why the beetle is not harmed by the chemicals it stores. - CORRECT
ANSWER The two chemicals are harmless when stored separately.
Bombardier beetles can spray a boiling hot liquid that contains irritating chemicals, which is
used as a defense mechanism against its enemies. The beetles store two sets of chemicals
separately in their glands. What causes the explosive discharge? - CORRECT
ANSWER When the beetle is threatened, structures in its body allow the two chemicals to
combine inside a specialized "mixing chamber." The resulting chemical reaction produces
irritating chemicals along with intense heat and an audible pop.
What is the relationship between the following two molecules? - CORRECT
ANSWER They are geometrical isomers
Which of the following can be used to predict the 3-D structure of the protein? - CORRECT
ANSWER sequence of amino acids in the polypeptide chain
Which sentence best describes the logic of scientific inquiry? - CORRECT ANSWER If
my prediction turns out to be correct, my hypothesis is supported.
Which of the following membrane activities requires energy from ATP hydrolysis? - CORRECT
ANSWER movement of Na+ ions from a lower concentration in a mammalian cell to a
higher concentration in the extracellular fluid
Depletion of which of the following molecules from the mitochondria will most directly inhibit
the citric acid cycle? - CORRECT ANSWER NAD+
ACTUAL Questions and CORRECT
Answers
The volume and surface area for three different cells are listed in the following table:
Volume Surface Area
Cell 1
9.3 μm3 26.5 μm2
Cell 2
12.2 μm3 37.1 μm2
Cell 3
17.6 μm3 40.6 μm2
Based on data from the table above, which cell will be able to eliminate wastes most efficiently?
- CORRECT ANSWER Cell 2 because it has the highest ratio of surface area to volume,
which facilitates the exchange of materials between a cell and its environment.
Which two functional groups are always found in amino acids? - CORRECT
ANSWER carboxyl and amino groups
Vinblastine, a drug that inhibits microtubule polymerization, is used to treat some forms of
cancer. Cancer cells treated with vinblastine would most likely be unable to perform which of the
following cellular functions? - CORRECT ANSWER separate chromosomes during cell
division
How many amino acids and peptide bonds does a tetrapeptide have? - CORRECT
ANSWER four amino acids and three peptide bonds
, Examination of a cell by transmission electron microscopy reveals a high density of ribosomes in
the cytoplasm. This observation suggests that the cell is actively producing large amounts of
which of the following molecules? - CORRECT ANSWER Proteins
Bombardier beetles can spray a boiling hot liquid that contains irritating chemicals, which is
used as a defense mechanism against its enemies. The beetles store two sets of chemicals
separately in their glands. Using what you learned about chemistry, what is a possible
explanation for why the beetle is not harmed by the chemicals it stores. - CORRECT
ANSWER The two chemicals are harmless when stored separately.
Bombardier beetles can spray a boiling hot liquid that contains irritating chemicals, which is
used as a defense mechanism against its enemies. The beetles store two sets of chemicals
separately in their glands. What causes the explosive discharge? - CORRECT
ANSWER When the beetle is threatened, structures in its body allow the two chemicals to
combine inside a specialized "mixing chamber." The resulting chemical reaction produces
irritating chemicals along with intense heat and an audible pop.
What is the relationship between the following two molecules? - CORRECT
ANSWER They are geometrical isomers
Which of the following can be used to predict the 3-D structure of the protein? - CORRECT
ANSWER sequence of amino acids in the polypeptide chain
Which sentence best describes the logic of scientific inquiry? - CORRECT ANSWER If
my prediction turns out to be correct, my hypothesis is supported.
Which of the following membrane activities requires energy from ATP hydrolysis? - CORRECT
ANSWER movement of Na+ ions from a lower concentration in a mammalian cell to a
higher concentration in the extracellular fluid
Depletion of which of the following molecules from the mitochondria will most directly inhibit
the citric acid cycle? - CORRECT ANSWER NAD+
