BAP FINAL EXAM QUESTIONS AND
ANSWERS
Which of the following is not a polymer? ✅✅correct answ-Glucose
Which of the following statements best supports the claim that organisms share fundamental
processes as a result of evolution? ✅✅correct answ-All organisms share a genetic code organized
into triplet codons, making it possible for one organism to express a gene from another organism.
Which of the following correctly illustrates a dipeptide and an amino acid in the optimal position to
form a tripeptide? ✅✅correct answ-C+O-OH connects to H
The structure depicted above shows the ✅✅correct answ-વ helix secondary structure of a
polypeptide
How does water act in most solutions? ✅✅correct answ-It is a universal solvent, dissolving mostly
ionic or polar covalent substances
A researcher is investigating that relationship between the existing species diversity in a community
and the ability of an introduced non-native species to destabilize the community. Which of the
following graphs is most consistent with the claim that communities with high diversity are more
resistant to change than are communities with low diversity? ✅✅correct answ-as species
diversity increases, survival of invaders decreases because more niches are occupied
For this pair of items, choose the option that best describes their relationship. A) The probability
that amino acids with polar side chains are hydrophobic. B) The probability that fatty acids are
hydrophobic. ✅✅correct answ-Item A is less than item B
A group of molecular biologists is trying to synthesize a new artificial compound to mimic the effects
of a known hormone that influences sexual behavior. They have turned to you for advice. Which of
the following compounds is most likely to mimic the effects of the hormone? ✅✅correct answ-A
compound with the same three-dimensional shape as a part of the hormone
Ice floats because: ✅✅correct answ-The distance between the water molecules increases as
water freezes
, Which functional group is not present in this molecule? ✅✅correct answ-Sulfhydryl
Differences among organisms are caused by ✅✅correct answ-Differences in the types and
relative amounts of organic molecules synthesized by each organism
Why are hydrocarbons insoluble in water? ✅✅correct answ-The majority of their bonds are
nonpolar covalent carbon-to-hydrogen linkages.
A new organism is discovered in the forest of Costa Rica. Scientists there determine that the
polypeptide sequence of hemoglobin from the new organism has 25 amino acid differences from
humans, 40 differences from a gibbon, 57 differences from a rat, and 70 differences from a frog.
These data suggest that the new organism ✅✅correct answ-Is more closely related to humans
than to frogs.
The diagram below shows energy changes in a specific chemical reaction with and without the
addition of an enzyme to the reaction. which of the following questions can best be answered by the
diagram? ✅✅correct answ-Does the addition of an enzyme reduce the activation energy required
for a reaction?
During an experiment, the amount of substrate is gradually increased and the amount of enzyme
was kept the same. Which of the graphs above would best describe the results? ✅✅correct answ-
B
Which of the following best describes the function of the coenzymes NAD and FAD in eukaryotic
cellular respiration? ✅✅correct answ-They accept electrons during oxidation-reduction reactions.
The endocrine system incorporates feedback mechanisms that maintain homeostasis. Which of the
following demonstrates negative feedback by the endocrine system?
During labor, the fetus exerts pressure on the uterine wall, inducing the production of oxytocin,
which stimulates uterine wall contraction. The contractions cause the fetus to further push on the
wall, increasing the production of oxytocin.
After a meal, blood glucose levels become elevated, stimulating beta cells of the pancreas to release
insulin into the blood. Excess glucose is then converted to glycogen in the liver, reducing blood
glucose levels.
At high elevation, atmospheric oxygen is more scarce. In response to signals that oxygen is low, the
brain decreases an individual's rate of respiration to compensate for the difference.
ANSWERS
Which of the following is not a polymer? ✅✅correct answ-Glucose
Which of the following statements best supports the claim that organisms share fundamental
processes as a result of evolution? ✅✅correct answ-All organisms share a genetic code organized
into triplet codons, making it possible for one organism to express a gene from another organism.
Which of the following correctly illustrates a dipeptide and an amino acid in the optimal position to
form a tripeptide? ✅✅correct answ-C+O-OH connects to H
The structure depicted above shows the ✅✅correct answ-વ helix secondary structure of a
polypeptide
How does water act in most solutions? ✅✅correct answ-It is a universal solvent, dissolving mostly
ionic or polar covalent substances
A researcher is investigating that relationship between the existing species diversity in a community
and the ability of an introduced non-native species to destabilize the community. Which of the
following graphs is most consistent with the claim that communities with high diversity are more
resistant to change than are communities with low diversity? ✅✅correct answ-as species
diversity increases, survival of invaders decreases because more niches are occupied
For this pair of items, choose the option that best describes their relationship. A) The probability
that amino acids with polar side chains are hydrophobic. B) The probability that fatty acids are
hydrophobic. ✅✅correct answ-Item A is less than item B
A group of molecular biologists is trying to synthesize a new artificial compound to mimic the effects
of a known hormone that influences sexual behavior. They have turned to you for advice. Which of
the following compounds is most likely to mimic the effects of the hormone? ✅✅correct answ-A
compound with the same three-dimensional shape as a part of the hormone
Ice floats because: ✅✅correct answ-The distance between the water molecules increases as
water freezes
, Which functional group is not present in this molecule? ✅✅correct answ-Sulfhydryl
Differences among organisms are caused by ✅✅correct answ-Differences in the types and
relative amounts of organic molecules synthesized by each organism
Why are hydrocarbons insoluble in water? ✅✅correct answ-The majority of their bonds are
nonpolar covalent carbon-to-hydrogen linkages.
A new organism is discovered in the forest of Costa Rica. Scientists there determine that the
polypeptide sequence of hemoglobin from the new organism has 25 amino acid differences from
humans, 40 differences from a gibbon, 57 differences from a rat, and 70 differences from a frog.
These data suggest that the new organism ✅✅correct answ-Is more closely related to humans
than to frogs.
The diagram below shows energy changes in a specific chemical reaction with and without the
addition of an enzyme to the reaction. which of the following questions can best be answered by the
diagram? ✅✅correct answ-Does the addition of an enzyme reduce the activation energy required
for a reaction?
During an experiment, the amount of substrate is gradually increased and the amount of enzyme
was kept the same. Which of the graphs above would best describe the results? ✅✅correct answ-
B
Which of the following best describes the function of the coenzymes NAD and FAD in eukaryotic
cellular respiration? ✅✅correct answ-They accept electrons during oxidation-reduction reactions.
The endocrine system incorporates feedback mechanisms that maintain homeostasis. Which of the
following demonstrates negative feedback by the endocrine system?
During labor, the fetus exerts pressure on the uterine wall, inducing the production of oxytocin,
which stimulates uterine wall contraction. The contractions cause the fetus to further push on the
wall, increasing the production of oxytocin.
After a meal, blood glucose levels become elevated, stimulating beta cells of the pancreas to release
insulin into the blood. Excess glucose is then converted to glycogen in the liver, reducing blood
glucose levels.
At high elevation, atmospheric oxygen is more scarce. In response to signals that oxygen is low, the
brain decreases an individual's rate of respiration to compensate for the difference.
