Bio 116 Final Exam Questions and
Answers
Cells tend to _________ when placed in a hypotonic solution. - ANSWER-swell
The rough endoplasmic reticulum appears "bumpy" because of the associated
______. - ANSWER-ribosomes
How do unsaturated fatty acids increase membrane fluidity at lower temperatures? -
ANSWER-The double bonds form kinks in the fatty acid tails, preventing adjacent
lipids from packing tightly.
The force driving of simple diffusion is ________, while the energy source for active
transport can be ________. - ANSWER-a concentration gradient; ATP hydrolysis
Which of the following events occurs during interphase of the cell cycle? - ANSWER-
replication of the DNA
In the following reaction describing cellular respiration, ________.
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + Energy - ANSWER-C6H12O6 is oxidized and
O2 is reduced.
In glycolysis, ____ of ATP is produced by the substrate-level phosphorylation. -
ANSWER-100%
In eukaryotic cells, ______ take place(s) in the cytoplasm. - ANSWER-glycolysis and
fermentation
During cellular respiration, where did we encounter the high energy molecule GTP--a
cousin of ATP? - ANSWER-Citric acid cycle
Select the correct statement regarding the role of oxygen in cellular respiration. -
ANSWER-Oxygen serves as the final acceptor for electrons from the electron
transport chain.
In eukaryotic cells, energy harvested by the electron transport chain is used to pump
H+ ions into the ____. - ANSWER-mitochondrial intermembrane space
During cellular respiration, the process of pyruvate oxidation generates all of the
following EXCEPT ______. - ANSWER-ATP
When acetyl-CoA enters the citric acid cycle during cellular respiration, it combines
with a C4 carbon molecule ______ to form a C6 carbon molecule called_____. -
ANSWER-oxaloacetate; citrate (citric acid)
, Which of the following statement is NOT correct about the electron transport chain
(ETC) during cellular respiration? - ANSWER-Compared to NADH, FADH2 oxidation
by the ETC will move more protons across the mitochondrial inner membrane, thus
generating larger proton motive force.
You receive a 'build-it-yourself' photosynthesis kit for Christmas-which of the
following pieces would not be needed to build your model? - ANSWER-NAD+
In photosynthesis, plants use carbon from ____ to make sugar and other organic
molecules. - ANSWER-the air
Photosynthesis consists of two sets of reactions, the ________ and the _________
with oxygen being produced during the ____________ reactions. - ANSWER-Light-
dependent; light-independent; light-dependent
What is the main role of the pigment molecules within the antenna or light-harvesting
complex? - ANSWER-Absorb photons and transfer light energy to the reaction
center chlorophyll.
Where does the Calvin cycle occur? - ANSWER-chloroplast stroma
For the fragments shown below, select the correct sequence of electron flow during
photosynthesis. - ANSWER-H2O → NADPH → Calvin cycle
The main structure for gas exchange in plants is called the - ANSWER-stomata.
What is the correct sequence of compounds an electron would encounter if you
begin from the very start of Photosystem II and use non-cyclic electron flow? (not all
steps included)
I Ferrodoxin
II Water
III NADPH
IV G3P
V Pheophytin - ANSWER-II-V-I-III-IV
Because ______ plants have Bundle-sheath cells, they are able to ________
separate their Calvin Cycle from high concentrations of _______. - ANSWER-C4;
spatially; O2
What do protein kinases do? - ANSWER-Attach phosphate groups to proteins
Chloroplasts and mitochondria generate ATP by the same mechanism called -
ANSWER-Chemiosmosis; proton motive force
ATP is produced in a cell via - ANSWER-substrate-level phosphorylation and/or c.
oxidative phosphorylation
During cellular respiration, as cells break glucose down to create ATP in the
presence of oxygen, what would be the correct sequence of events that you would
encounter these chemicals?
Answers
Cells tend to _________ when placed in a hypotonic solution. - ANSWER-swell
The rough endoplasmic reticulum appears "bumpy" because of the associated
______. - ANSWER-ribosomes
How do unsaturated fatty acids increase membrane fluidity at lower temperatures? -
ANSWER-The double bonds form kinks in the fatty acid tails, preventing adjacent
lipids from packing tightly.
The force driving of simple diffusion is ________, while the energy source for active
transport can be ________. - ANSWER-a concentration gradient; ATP hydrolysis
Which of the following events occurs during interphase of the cell cycle? - ANSWER-
replication of the DNA
In the following reaction describing cellular respiration, ________.
C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + Energy - ANSWER-C6H12O6 is oxidized and
O2 is reduced.
In glycolysis, ____ of ATP is produced by the substrate-level phosphorylation. -
ANSWER-100%
In eukaryotic cells, ______ take place(s) in the cytoplasm. - ANSWER-glycolysis and
fermentation
During cellular respiration, where did we encounter the high energy molecule GTP--a
cousin of ATP? - ANSWER-Citric acid cycle
Select the correct statement regarding the role of oxygen in cellular respiration. -
ANSWER-Oxygen serves as the final acceptor for electrons from the electron
transport chain.
In eukaryotic cells, energy harvested by the electron transport chain is used to pump
H+ ions into the ____. - ANSWER-mitochondrial intermembrane space
During cellular respiration, the process of pyruvate oxidation generates all of the
following EXCEPT ______. - ANSWER-ATP
When acetyl-CoA enters the citric acid cycle during cellular respiration, it combines
with a C4 carbon molecule ______ to form a C6 carbon molecule called_____. -
ANSWER-oxaloacetate; citrate (citric acid)
, Which of the following statement is NOT correct about the electron transport chain
(ETC) during cellular respiration? - ANSWER-Compared to NADH, FADH2 oxidation
by the ETC will move more protons across the mitochondrial inner membrane, thus
generating larger proton motive force.
You receive a 'build-it-yourself' photosynthesis kit for Christmas-which of the
following pieces would not be needed to build your model? - ANSWER-NAD+
In photosynthesis, plants use carbon from ____ to make sugar and other organic
molecules. - ANSWER-the air
Photosynthesis consists of two sets of reactions, the ________ and the _________
with oxygen being produced during the ____________ reactions. - ANSWER-Light-
dependent; light-independent; light-dependent
What is the main role of the pigment molecules within the antenna or light-harvesting
complex? - ANSWER-Absorb photons and transfer light energy to the reaction
center chlorophyll.
Where does the Calvin cycle occur? - ANSWER-chloroplast stroma
For the fragments shown below, select the correct sequence of electron flow during
photosynthesis. - ANSWER-H2O → NADPH → Calvin cycle
The main structure for gas exchange in plants is called the - ANSWER-stomata.
What is the correct sequence of compounds an electron would encounter if you
begin from the very start of Photosystem II and use non-cyclic electron flow? (not all
steps included)
I Ferrodoxin
II Water
III NADPH
IV G3P
V Pheophytin - ANSWER-II-V-I-III-IV
Because ______ plants have Bundle-sheath cells, they are able to ________
separate their Calvin Cycle from high concentrations of _______. - ANSWER-C4;
spatially; O2
What do protein kinases do? - ANSWER-Attach phosphate groups to proteins
Chloroplasts and mitochondria generate ATP by the same mechanism called -
ANSWER-Chemiosmosis; proton motive force
ATP is produced in a cell via - ANSWER-substrate-level phosphorylation and/or c.
oxidative phosphorylation
During cellular respiration, as cells break glucose down to create ATP in the
presence of oxygen, what would be the correct sequence of events that you would
encounter these chemicals?
