WGU BIOCHEMISTRY OA ACTUAL EXAM PAPER 2026 QUESTIONS WITH SOLUTIONS GRADED A+

WGU BIOCHEMISTRY OA ACTUAL EXAM
PAPER 2026 QUESTIONS WITH SOLUTIONS
GRADED A+

◉ false
Answer: T/F: The majority of the reactions of the urea cycle occur in
the mitochondrial matrix.


◉ false
Answer: T/F: FADH2 yields 2.5 ATP molecules after donating
electrons and hydrogen atoms to the ETC.


◉ 2.5 ATP per NADH
Answer: How many ATP molecules does NADH yield after donating
electrons and hydrogen atoms to the electron transfer chain (ETC)?


◉ 1.5 ATP per FADH2
Answer: How many ATP molecules does FADH2 yield after donating
electrons and hydrogen atoms to the electron transfer chain (ETC)?


◉ true
Answer: T/F: ATP is invested in the urea cycle.

, ◉3
Answer: How many total ATP are invested in the urea cycle?


◉ false
Answer: T/F: There are 5 complexes associated with the ETC.


◉4
Answer: How many complexes are associated with the ETC?


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


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


◉4
Answer: The urea cycle involves ___ reactions (only those in the
cyclic portion of the process).