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Cell Biology Final Exam (T or F & MC)
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Cell Biology Final Exam (T or F & MC)
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Cell Biology Final Exam (T or F & MC)0 mV - ANS-What would be the resting potential across an artificial membrane if call charged
molecules on both sides were equally permeable?
10 - ANS-If each NADH can drive the synthesis of 2.5 ATP, and FADH2 can drive the synthesis
of 1.5 ATP, how many total ATP (or equivalents) are ultimately produced from 1 acetylCoA
molecule that is completely oxidized in the citric acid cycle?
9 ATP and 6 NADPH are used - ANS-Which of the following statements is true for the fixation of
3 CO2 molecules
a membrane protein - ANS-A start-stop sequence is found in a protein that will be
a. K+, Na+ and Cl- - ANS-5. In a typical mammalian cell, _______ is (are) higher on the inside,
and _______ is (are) higher on the outside
Actin - ANS-The cell cortex just under the plasma membrane is made of
Adaptin - ANS-The protein that determine which cargo proteins will be transported in a specific
vesicle is
Adaptin - ANS-Which of these proteins is NOT a GTPase
all of these (ionic, hydrogen, covalent, van der waals) - ANS-Which of the following types of
bonds can be involved in the quarternary structure of a protein
B - ANS-In the diagram which letter represents the energy of activation for the enzyme
catalyzed reaction
CH3OH --> CH2O - ANS-Which of the following reactions is an oxidation of the substrate
Cl- - ANS-All of the following can diffuse through the cell membrane except
confocal microscopy - ANS-Suppose you want to study how the surface features of a cell
change while the cell is treated with a certain drug. What type of microscopy would you most
likely use?
Contact dependent - ANS-Delta binding to the Notch receptor is a type of ______ signaling
cytochrome c - ANS-Which component of the electron transport system is NOT embedded in a
membrane
, delta G= 0 - ANS-For a reaction A + B -> C + D which is at equilibrium which of the following are
true
During mitochondrial electron transport the pH in the matrix goes down - ANS-Which of the
following statements about H+ gradients is NOT true
Estrogen - ANS-Which of the following would have an intracellular receptor
False - ANS-Actin filaments are made of various kinds of proteins
False - ANS-All amino acids are hydrophilic
False - ANS-All proteins embedded int he cell membrane are free to diffuse within the plane of
the plasma membrane
False - ANS-Decreasing the percentage of unsaturated fatty acids in a biological membrane will
increase its fluidity
False - ANS-Glycolysis cannot occur in the absence of oxygen
False - ANS-Green plants have only chlorophyll as the photosynthetic pigment in their leaves
False - ANS-Histone proteins have a large number of negatively charged amino acids in their
sequence
False - ANS-In prokaryotes the electron transport chain involves the mitochondrial membrane
False - ANS-Membrane phospholipids often flip-flop across the membrane
False - ANS-Mutations in the DNA of an organism are kept to a small rate of occurrence by the
5' to 3' exonuclease activity of DNA polymerase
False - ANS-Phosphorylation of glycogen phosphorylate inactivates it
False - ANS-Proteins are transported into the MITOCHONDRIA in their completely folded
conformation
False - ANS-The Calvin cycle creates ATP and NADPH for use by the cell
False - ANS-The pyruvate dehydrogenase reaction results in the reduction of FAD+ to FADH2
False - ANS-The set of metabolic reactions in cells that help synthesize all the cellular
components are called catabolism
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