BCH210 QUIZ RAFFLE! TEST QUESTIONS WITH ALL ANSWERS REVISED AND UPDATED
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Course
BCH210
Institution
BCH210
BCH210 QUIZ RAFFLE! TEST QUESTIONS WITH ALL ANSWERS REVISED AND UPDATED
How are glycolysis and gluconeogenesis (GNG) similar?
A. All of the substrates for GNG are glycolytic products.
B. They both contain redox and isomerization reactions.
C. The same amount of energy released in glycolysis ...
BCH210 QUIZ RAFFLE! TEST
QUESTIONS WITH ALL ANSWERS
REVISED AND UPDATED
How are glycolysis and gluconeogenesis (GNG) similar?
A. All of the substrates for GNG are glycolytic products.
B. They both contain redox and isomerization reactions.
C. The same amount of energy released in glycolysis is used to drive GNG.
D. In the number of enzymes. - Answer-B - isomerization: G6P <-> F6P; redox: rxns
that make NADH (G) or use NADH (GNG)
A- nope, not lactate/glycerol (TAG breakdown)
C - nope, that would make the rxn incredibly unfavorable! LESS E is needed
D - GNG has 11 enzymes (1 mito), G has 10 enzymes (all cyto)
-> #SHARE 7 ENZYMES
Which ONE of the following is primarily responsible for the number of ATPs made per
H+ that cross the inner mitochondrial membrane in ATP synthase?
A. The number of c subunits.
B. The reversibility of ATP synthase.
C. The ATP-ADP translocase.
D. The F1 stator - Answer-A - rotation of the c subunits -> rotation of the Y subunit -> B
subunits to make ATP
B - not responsible for the # of ATPs made PER H+
C - its only responsible for 1 H+, c subunits responsible for the other 3
D - not responsible for # of ATPs made PER H+
Which ONE of the following statements is CORRECT regarding the reciprocal
regulation of glycolysis and gluconeogenesis (GNG)?
A. The product of GNG can inhibit glycolysis.
B. Fructose 2,6-bisphosphate is made in GNG and slows down glycolysis.
C. The reciprocal regulation seen in glycolysis and GNG occurs in different cells.
D. The same molecule can stimulate one pathway but inhibit the other. - Answer-D-
acetyl coa stimulates (PC) GNG and inhibits G (PK); F26BP stimulates PFK1 (G) and
inhibits F16BPase (GNG)
A - Glucose does NOT inhibit glycolysis
B - made as a SIDE REACTION by PFK2, slows down GNG (inhibiting FBP1)
C - nope, occurs in the same liver/kidney cells
, Which ONE of the following statements is CORRECT regarding the electron transport
chain?
A. Electrons are passed to generate a negative change in redox potential.
B. It generates energy to pump protons against their gradient into the matrix.
C. Different cofactors can act as electron donors and acceptors to pass electrons
through the chain.
D. Complex IV passes electrons to water, the final electron acceptor - Answer-C - cyt C
+ coQ
A - POSITIVE change
B - into the IMS
D - to O2 to MAKE water
For mitochondria treated with Antimycin A, which ONE of the following could assist with
ATP production?
A. FADH2
B. A decrease in pH
C. Oligomycin
D. An uncoupler like Dinitrophenol (DNP) - Answer-B - low pH -> more H+ can pass
through porins on the outer membrane into IMS -> ATP Synthase use this proton
gradient to make ATP
A - since antimycin A inhibits complex III from passing e to Cyt C -> IV, adding FADH2
(pass e to Q -> III) would still not allow the passing of e to complex IV and complex III
and IV would still be unable to have free E change from passing e necessary to pump
H+ into IMS
C - inhibits ATP Synthase -> makes even LESS ATP
D - dissipates proton gradient even more -> makes even LESS ATP
Which ONE of the following has a direct effect on ATP synthase?
A. Dinitrophenol
B. Oligomycin
C. Rotenone
D. NADH - Answer-B - directly inhibits ATP Synthase from using proton gradient to
make ATP
A - INDIRECTLY affects it (dissipating H+ gradient by bringing H+ into matrix)
C - inhibits I
D - nope?
The beta subunits found in ATP synthase are located in the:
A. intermembrane space
B. F0 portion
C. peripheral of the outer mitochondrial membrane
D. matrix - Answer-D
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