Portage Biochemistry- Module 8 Exam
Questions & Answers (Grade A+)
What is the "unifying" theory covered in this module? -
correct answer ✅Chemiosmotic theory
How many ATP are produced per NADH molecule? Per FADH2
molecule? -
correct answer ✅NADH- 2.5 ATP
FADH2- 1.5 ATP
In the figure below, several portions of a molecule have dashed
circles. Which portion of the molecule, A, B, C, or D, would be
removed in oxidative deamination? Briefly explain. -
correct answer ✅Part D. This is the amine portion of the amino
acid.
What happens to the carbon skeleton of an amino acid after it is
separated from NH4+? -
correct answer ✅The carbon skeleton becomes acetyl-CoA, then
ATP.
Why is urea such a good molecule for excreting nitrogen from cells?
-
correct answer ✅It has a high density of nitrogen in a small
molecule, and it can form numerous hydrogen bonds with water.
, Portage Biochemistry- Module 8 Exam
Questions & Answers (Grade A+)
A. In the overall processing of NH4+, how many molecules of ATP
are invested?
B. What molecule from the urea cycle can enter the citric acid
cycle?
C. What is Pi?
D. Which two amino acids were studied in Module 3? -
correct answer ✅A. 3 ATP molecules, overall. 2 ATP from Reaction-
A and 1 in Reaction-2.
B. Fumarate
C. Inorganic phosphate or inorganic orthophosphate.
D. Aspartate and arginine were studied in Module 3.
What is an integral protein? -
correct answer ✅A protein firmly embedded in the lipid bilayer
How many complexes are in the ETC? -
correct answer ✅Four complexes named complex I, II, III, and IV
At which ETC complex is H2O produced? How is it produced? -
correct answer ✅At complex IV by the following reaction:
Questions & Answers (Grade A+)
What is the "unifying" theory covered in this module? -
correct answer ✅Chemiosmotic theory
How many ATP are produced per NADH molecule? Per FADH2
molecule? -
correct answer ✅NADH- 2.5 ATP
FADH2- 1.5 ATP
In the figure below, several portions of a molecule have dashed
circles. Which portion of the molecule, A, B, C, or D, would be
removed in oxidative deamination? Briefly explain. -
correct answer ✅Part D. This is the amine portion of the amino
acid.
What happens to the carbon skeleton of an amino acid after it is
separated from NH4+? -
correct answer ✅The carbon skeleton becomes acetyl-CoA, then
ATP.
Why is urea such a good molecule for excreting nitrogen from cells?
-
correct answer ✅It has a high density of nitrogen in a small
molecule, and it can form numerous hydrogen bonds with water.
, Portage Biochemistry- Module 8 Exam
Questions & Answers (Grade A+)
A. In the overall processing of NH4+, how many molecules of ATP
are invested?
B. What molecule from the urea cycle can enter the citric acid
cycle?
C. What is Pi?
D. Which two amino acids were studied in Module 3? -
correct answer ✅A. 3 ATP molecules, overall. 2 ATP from Reaction-
A and 1 in Reaction-2.
B. Fumarate
C. Inorganic phosphate or inorganic orthophosphate.
D. Aspartate and arginine were studied in Module 3.
What is an integral protein? -
correct answer ✅A protein firmly embedded in the lipid bilayer
How many complexes are in the ETC? -
correct answer ✅Four complexes named complex I, II, III, and IV
At which ETC complex is H2O produced? How is it produced? -
correct answer ✅At complex IV by the following reaction:
