Microbes and Energy Sources Quiz
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Questions and Answers

What molecule carries two or three times as much energy as ATP?

  • NADH (correct)
  • PPi
  • FAD
  • ADP

Which coenzyme is reduced by two electrons and two protons?

  • NADH
  • PPi
  • FAD (correct)
  • ADP

What is the oxidized form of nicotinamide adenine dinucleotide?

  • NADH
  • FAD
  • NAD+ (correct)
  • PPi

What is the reduced form of flavin adenine dinucleotide?

<p>FADH2 (C)</p> Signup and view all the answers

In lipid catabolism, why might more electron accepting energy carriers be needed compared to glucose catabolism?

<p>Lipids are more reduced than glucose. (C)</p> Signup and view all the answers

Why do different kinds of reactions use different energy carriers according to the text?

<p>To accommodate variations in redox levels. (C)</p> Signup and view all the answers

What is the overall reduction reaction for NAD+ to NADH?

<p>$NAD+ + 2H+ + 2e^- → NADH + H^+$ (A)</p> Signup and view all the answers

What type of reaction would likely need FAD as an energy carrier instead of NADH?

<p><em>Oxidation reactions</em> (B)</p> Signup and view all the answers

Which molecule can transfer electrons and carry energy but is not as common as NADH?

<p><em>FAD</em> (C)</p> Signup and view all the answers

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