CHEM 210 TEST 8 UPDATED ACTUAL EXAM QUESTIONS CORRECT ANSWERS GRADED A PLUS

CHEM 210 TEST 8 UPDATED ACTUAL EXAM QUESTIONS CORRECT ANSWERS GRADED A
PLUS
CHEM 210 TEST 8 Actual TEST 2026/2027
Questions and Answers Verified Solutions Latest
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Question:
urea is useful for excreting nitrogen from cells due to its: A. ability to form london forces B. high
density of nitrogen atoms C. large size D. low melting point E. both B and C.

Answer:
B. high density of nitrogen atoms



Question:
____ is both a component of the urea cycle and the citric acid cycle A. malate B. acetyl-CoA C.
citrate D. fumarate E. none of the above.

Answer:
D. fumarate



Question:
deamination of an amino acid results in a carbon skeleton and in the production of ____ A. NH2 B.
NH C. NO2 D. NH3 E. NH4+.

Answer:
E. NH4+



Question:
FADH2 donates electrons and H+ to complex___ A. I B. II C. III D. IV E. V.

Answer:
B. II

, Question:
which of the ETC complexes do pump H+ ions? A. complex I B. complex III C. complex IV D. all
of the above E. none of the above.

Answer:
D. all of the above



Question:
what protein shuttles electrons from Complex III to Complex IV? A. NADH dehydrogenase B.
cytochrome C (CoQ) C. fumarase D. cytochrome B E. none of the above.

Answer:
B. cytochrome C (CoQ)



Question:
in what portion of the mitochondrion does the CAC take place? A. matrix B. intermembrane space
C. inner membrane D. outer membrane E. both B and C.

Answer:
A. matrix



Question:
at which complex does the following reaction take place? O2 + 4e- + 4H+ -> 2H2O A. complex I B.
complex II C. complex III D. complex IV E. both A and B.

Answer:
D. complex IV



Question:
during the electron transport chain, protons are pumped from the ___ in the mitochondria A. from
the intermembrane space to the cytosol B. from the intermembrane space to the matrix C. from the
matrix to the intermembrane space D. from outside of the cell to the cytosol E. from outside of the
cell to the matrix.