WGU BIOCHEMISTRY OA FINAL PAPER 2026 COMPLETE QUESTIONS AND ANSWERS VERIFIED A+

WGU BIOCHEMISTRY OA FINAL PAPER
2026 COMPLETE QUESTIONS AND
ANSWERS VERIFIED A+

◉ complex I
Answer: NADH donates electrons and H+ to complex


◉ complex II
Answer: FADH2 donates electrons and H+ to complex


◉ complexes I, III, IV
Answer: Which of the ETC complexes pump H+?


◉ complex II
Answer: Which of the ETC complexes do not pump H+?


◉ cytochrome c
Answer: What protein shuttles electrons from complex III to
complex IV?


◉ coQ

, Answer: What molecule transfers electrons and H+ from both
complex I and complex II to complex III?


◉ matrix
Answer: In what portion of the mitochondrion does the CAC take
place?


◉ complex IV
Answer: At which complex does the following reaction take place?


O2 + 4 e- + 4 H+ → 2 H2O


◉ complex I
Answer: At which complex does the following reaction take place?


NADH + H+ + coQ → NAD + coQH2


◉ complex II
Answer: At which complex does the following reaction take place?


FADH2 + coQ → FAD + coQH2