Endogenous Sources of ROS and RNS Quiz

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Questions and Answers

Which complex is responsible for passing its electron to Coenzyme Q?

  • Complex II (correct)
  • Complex IV
  • Complex III
  • Complex I

What is the result of four electrons transferred to oxygen in complex IV?

  • NADH is regenerated
  • ATP is produced
  • Two water molecules are formed (correct)
  • ADP is converted to AMP

Which component connects complex III and complex IV in the electron transport chain?

  • Cytochrome c (correct)
  • NADH
  • Coenzyme Q
  • FADH2

What is formed when some electrons combine with oxygen to form a very unstable form of oxygen called a superoxide radical?

<p>Reactive oxygen species (A)</p> Signup and view all the answers

Which complex is responsible for passing its electron to NADH dehydrogenase?

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

What is the function of cytochrome c in the mitochondrial electron transport chain?

<p>It connects complex III and complex IV (A)</p> Signup and view all the answers

Which component is responsible for connecting either Complex I or Complex II to Complex III in the mitochondrial electron transport chain?

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

What is the result of electrons derived from NADH and FADH2 combining with O2 in the mitochondrial electron transport chain?

<p>Formation of reactive oxygen species (C)</p> Signup and view all the answers

Which complex in the mitochondrial electron transport chain passes its electron to succinate dehydrogenase?

<p>Complex II (B)</p> Signup and view all the answers

What happens when a total of four electrons are transferred to oxygen in complex IV of the mitochondrial electron transport chain?

<p>Formation of two water molecules (D)</p> Signup and view all the answers

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