Question

Which can accept a hydride ion during electron transduction system?

• A. FADH, NADH
• B. FAD${}^{+}$, NADP${}^{+}$
• C. FAD${}^{+}$, NADH
• D. FADH, NAD${}^{+}$

Answer 1

The correct option is B FAD${}^{+}$, NADP${}^{+}$

• FAD${}^{+}$ and NADP${}^{+}$ act as hydrogen acceptors.
• They accept hydrogen and form high energy molecules like NADH, NADPH, and FADH${}_2$. This helps to form ATP.
• One NADP produces 3 ATP while one FADH${}_2$ leads to the production of 2 ATP.
  

So, the correct answer is option B.