BIO 150 Final Exam Questions || WITH ANSWERS 100%
CORRECT!!
Which of the following is NOT a component of the plasma membrane?
a. Phospholipids
b. Cholesterol
c. Integral proteins
d. Peripheral proteins
e. Ribonucleic acids correct answers E
_______________ is a term that describes both the polar and nonpolar nature of
phospholipids.
a. amphitheaters
b. ambidextrous
c. amphibolic
d. amphipathic
e. amphibious correct answers D
Which of the following would cause an increase in van der Wal interactions within a
membrane bilayer?
a. Long unsaturated fatty acid tails
b. Long saturated fatty acid tails
c. Short unsaturated fatty acid tails
d. Short saturated fatty acid tails
e. A combination of short and long fatty acid tails correct answers B
What would be the result of a cell placed in a hypertonic environment?
a. The solution would have a higher salt concentration than the cell so water would flow out
of the cell and it would shrivel.
b. The solution would have a lower salt concentration than the cell so water would flow out
of the cell and it would shrivel.
c. The solution would have a lower salt concentration than the cell so water would flow out of
the cell and it would burst.
d. The water would flow into and out of the cell at equal rates. correct answers A
In the flower petunia, PhABCG1 is a membrane embedded protein that transports volatile
organic compounds across the membrane. This protein uses ATP hydrolysis to supply the
energy needed to transport these molecules. This is an example of ____________.
a. Simple diffusion
b. Facilitated diffusion
c. Primary active transport
d. Secondary active transport
e. Osmosis correct answers C
Which of the following is a similarity shared between bacteria and mammalian cells?
a. Both mammalian and bacterial cells are similar sized
b. Both mammalian and bacterial cells store genetic material in a nucleus
c. Both mammalian and bacterial cells make ATP in the mitochondria
d. Both mammalian and bacterial cells have a cell wall
,e. Both mammalian and bacterial cells have a genome composed of nucleic acids correct
answers E
Plants are considered ____________, while humans are ___________.
a. Photoautotrophs; chemoautotrophs
b. Chemoheterotrophs; photoautotrophs
c. Photoautotrophs; chemoheterotrophs
d. Chemoautotrophs; chemoheterotrophs
e. Chemoheterotrophs; photoheterotrophs correct answers C
Which of the following statements is correct about energy requiring chemical reactions
within a cell?
a. They are spontaneous and have a +ΔG
b. They are nonspontaneous and are considered exothermic
c. They are endothermic, have a +ΔG, and are considered nonspontaneous
d. They have a -ΔG, are nonspontaneous, and are considered exothermic
e. They are spontaneous, have a ΔG of zero, and are considered endothermic correct answers
C
The __________ is the location on the enzyme where the substrate binds.
a. Transition site
b. Substrate site
c. Active site
d. Allosteric site
e. Reduction site correct answers C
Which of the following molecules is the most reduced and would contain the highest amount
of potential energy?
a. CO2
b. C6H12O6
c. C3H4O3
d. CH3OH
e. O2 correct answers B
Inhibitors that bind to the active site and decrease enzymatic activity are called
____________.
a. Competitive inhibitors
b. Allosteric inhibitors
c. Reduction inhibitors
d. Suppressor inhibitors
e. Feedback inhibitors correct answers A
Which statement about energy is true?
a. Potential energy cannot be transformed into kinetic energy
b. Potential energy of the products of a reaction must be the same as the potential energy in
the products of a reaction
c. All of the potential energy in one molecule of glucose can be found in the 36 molecules of
ATP
d. Entropy of a system decreases when energy is transformed
e. None of the above statements are true correct answers E
, During glycolysis, glucose is partially __________ to pyruvate and NAD^+ is ___________
to NADH.
a. Reduced; reduced
b. Oxidized; oxidized
c. Reduced; oxidized
d. Oxidized; reduced
e. Metabolized; hydrolyzed correct answers D
Which of the following does not occur during glycolysis?
a. Pyruvate molecules are formed
b. Electrons are transferred to electron carriers
c. ATP is created by oxidative phosphorylation
d. Glucose is phosphorylated to trap it inside the cell
e. ATP hydrolysis is coupled to some nonspontaneous reactions correct answers C
A red blood cell (RBC) was placed in three beakers labeled A (0.9% saline), B (1.9% saline),
and C (0.4% saline). If the internal salinity of the RBC is 0.9%, in which beaker will the RBC
burst?
a. Beaker A
b. Beaker B
c. Beaker C
d. Trick questions, RBCs cannot burst
e. It will burst in all of the beakers because RBC are very fragile correct answers C
What organic molecule is created and released as a waste product when glucose is completely
oxidized during cellular respiration?
a. H2O
b. O2
c. Pyruvate
d. CO2
e. NADH correct answers D
The dark reactions of photosynthesis, also known as the Calvin cycle, occur in the
____________.
a. Stroma of the chloroplast
b. Inner membrane of the mitochondria
c. Lumen of the thylakoid
d. Thylakoid membrane
e. Matrix of the mitochondria correct answers A
What is the major difference between the antennae chlorophyll and the reaction center
chlorophyll?
a. Antennae chlorophyll only absorb visible light while reaction center chlorophyll absorb
UV light
b. Antennae chlorophyll transfer energy when excited, while reaction center chlorophyll
transfer electrons
c. Antennae chlorophyll are located in the inner membrane of the chloroplast while reaction
center chlorophylls are located in the stroma
CORRECT!!
Which of the following is NOT a component of the plasma membrane?
a. Phospholipids
b. Cholesterol
c. Integral proteins
d. Peripheral proteins
e. Ribonucleic acids correct answers E
_______________ is a term that describes both the polar and nonpolar nature of
phospholipids.
a. amphitheaters
b. ambidextrous
c. amphibolic
d. amphipathic
e. amphibious correct answers D
Which of the following would cause an increase in van der Wal interactions within a
membrane bilayer?
a. Long unsaturated fatty acid tails
b. Long saturated fatty acid tails
c. Short unsaturated fatty acid tails
d. Short saturated fatty acid tails
e. A combination of short and long fatty acid tails correct answers B
What would be the result of a cell placed in a hypertonic environment?
a. The solution would have a higher salt concentration than the cell so water would flow out
of the cell and it would shrivel.
b. The solution would have a lower salt concentration than the cell so water would flow out
of the cell and it would shrivel.
c. The solution would have a lower salt concentration than the cell so water would flow out of
the cell and it would burst.
d. The water would flow into and out of the cell at equal rates. correct answers A
In the flower petunia, PhABCG1 is a membrane embedded protein that transports volatile
organic compounds across the membrane. This protein uses ATP hydrolysis to supply the
energy needed to transport these molecules. This is an example of ____________.
a. Simple diffusion
b. Facilitated diffusion
c. Primary active transport
d. Secondary active transport
e. Osmosis correct answers C
Which of the following is a similarity shared between bacteria and mammalian cells?
a. Both mammalian and bacterial cells are similar sized
b. Both mammalian and bacterial cells store genetic material in a nucleus
c. Both mammalian and bacterial cells make ATP in the mitochondria
d. Both mammalian and bacterial cells have a cell wall
,e. Both mammalian and bacterial cells have a genome composed of nucleic acids correct
answers E
Plants are considered ____________, while humans are ___________.
a. Photoautotrophs; chemoautotrophs
b. Chemoheterotrophs; photoautotrophs
c. Photoautotrophs; chemoheterotrophs
d. Chemoautotrophs; chemoheterotrophs
e. Chemoheterotrophs; photoheterotrophs correct answers C
Which of the following statements is correct about energy requiring chemical reactions
within a cell?
a. They are spontaneous and have a +ΔG
b. They are nonspontaneous and are considered exothermic
c. They are endothermic, have a +ΔG, and are considered nonspontaneous
d. They have a -ΔG, are nonspontaneous, and are considered exothermic
e. They are spontaneous, have a ΔG of zero, and are considered endothermic correct answers
C
The __________ is the location on the enzyme where the substrate binds.
a. Transition site
b. Substrate site
c. Active site
d. Allosteric site
e. Reduction site correct answers C
Which of the following molecules is the most reduced and would contain the highest amount
of potential energy?
a. CO2
b. C6H12O6
c. C3H4O3
d. CH3OH
e. O2 correct answers B
Inhibitors that bind to the active site and decrease enzymatic activity are called
____________.
a. Competitive inhibitors
b. Allosteric inhibitors
c. Reduction inhibitors
d. Suppressor inhibitors
e. Feedback inhibitors correct answers A
Which statement about energy is true?
a. Potential energy cannot be transformed into kinetic energy
b. Potential energy of the products of a reaction must be the same as the potential energy in
the products of a reaction
c. All of the potential energy in one molecule of glucose can be found in the 36 molecules of
ATP
d. Entropy of a system decreases when energy is transformed
e. None of the above statements are true correct answers E
, During glycolysis, glucose is partially __________ to pyruvate and NAD^+ is ___________
to NADH.
a. Reduced; reduced
b. Oxidized; oxidized
c. Reduced; oxidized
d. Oxidized; reduced
e. Metabolized; hydrolyzed correct answers D
Which of the following does not occur during glycolysis?
a. Pyruvate molecules are formed
b. Electrons are transferred to electron carriers
c. ATP is created by oxidative phosphorylation
d. Glucose is phosphorylated to trap it inside the cell
e. ATP hydrolysis is coupled to some nonspontaneous reactions correct answers C
A red blood cell (RBC) was placed in three beakers labeled A (0.9% saline), B (1.9% saline),
and C (0.4% saline). If the internal salinity of the RBC is 0.9%, in which beaker will the RBC
burst?
a. Beaker A
b. Beaker B
c. Beaker C
d. Trick questions, RBCs cannot burst
e. It will burst in all of the beakers because RBC are very fragile correct answers C
What organic molecule is created and released as a waste product when glucose is completely
oxidized during cellular respiration?
a. H2O
b. O2
c. Pyruvate
d. CO2
e. NADH correct answers D
The dark reactions of photosynthesis, also known as the Calvin cycle, occur in the
____________.
a. Stroma of the chloroplast
b. Inner membrane of the mitochondria
c. Lumen of the thylakoid
d. Thylakoid membrane
e. Matrix of the mitochondria correct answers A
What is the major difference between the antennae chlorophyll and the reaction center
chlorophyll?
a. Antennae chlorophyll only absorb visible light while reaction center chlorophyll absorb
UV light
b. Antennae chlorophyll transfer energy when excited, while reaction center chlorophyll
transfer electrons
c. Antennae chlorophyll are located in the inner membrane of the chloroplast while reaction
center chlorophylls are located in the stroma
