Glycolysis and TCA Cycle: Basic Concepts · Zoology

What is the primary role of NAD+ in metabolic pathways?

  1. Donating phosphate groups to substrates
  2. Acting as a structural protein
  3. Accepting and donating electrons
  4. Transporting amino acids
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Correct answer: Accepting and donating electrons

NAD+ functions as an electron carrier in redox reactions. It alternates between oxidized (NAD+) and reduced (NADH) forms.

Difficulty: Medium Question 12 of 20

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