What is the electron acceptor in glycolysis?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Study for the UCF Biomedical Exit Exam. Access flashcards and multiple-choice questions with detailed hints and explanations. Prepare for success!

Multiple Choice

What is the electron acceptor in glycolysis?

Explanation:
In glycolysis, the oxidation of glyceraldehyde-3-phosphate is coupled to the reduction of NAD+ to NADH, with NAD+ acting as the electron acceptor. This step, catalyzed by glyceraldehyde-3-phosphate dehydrogenase, is essential to pull the pathway forward because it regenerates the NAD+ needed for ongoing glycolysis. NADH is the product of that transfer, not the acceptor. FAD isn’t used in glycolysis as an electron acceptor, and oxygen isn’t required for glycolysis itself (though oxygen can be involved later to reoxidize NADH in aerobic respiration or NAD+ can be regenerated via fermentation under anaerobic conditions).

In glycolysis, the oxidation of glyceraldehyde-3-phosphate is coupled to the reduction of NAD+ to NADH, with NAD+ acting as the electron acceptor. This step, catalyzed by glyceraldehyde-3-phosphate dehydrogenase, is essential to pull the pathway forward because it regenerates the NAD+ needed for ongoing glycolysis. NADH is the product of that transfer, not the acceptor. FAD isn’t used in glycolysis as an electron acceptor, and oxygen isn’t required for glycolysis itself (though oxygen can be involved later to reoxidize NADH in aerobic respiration or NAD+ can be regenerated via fermentation under anaerobic conditions).

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy