CHEM 210 EXAM 8 2026 THERMODYNAMICS ENTROPY ENTHALPY GIBBS FREE ENERGY SPONTANEITY CALCULATIONS

CHEM 210 EXAM 8 2026
THERMODYNAMICS ENTROPY ENTHALPY
GIBBS FREE ENERGY SPONTANEITY
CALCULATIONS


◉ T/F NADH yields 1.5 ATP molecules after donating electrons and
hydrogen atoms to the electron transport chain (ETC)
Answer: false


◉ T/F GTP is invested in the urea cycle
Answer: false


◉ T/F there are six complexes associated with the ETC
Answer: false


◉ T/F in the production of ATP via ATP synthase, the H+ ions move
from the mitochondrial matrix to the intermembrane space
Answer: false

,◉ the urea cycle involves ____ reactions (only those in the cyclic
portion of the process)
A. 1
B. 2
C. 3
D. 4
E. 5
Answer: D. 4


◉ which amino acids are involved in the urea cycle
A. ornithine
B. aspartate
C. threonine
D. both A and B
E. both A and C
Answer: D. both A and B


◉ fumarate is converted to ___ for it to reenter the mitochondrion
A. ornithine
B. citrulline
C. malate
D. fumarase

, E. ammonia
Answer: C. malate


◉ 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


◉ ____ 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


◉ deamination of an amino acid results in a carbon skeleton and in
the production of ____
A. NH2