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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?

Reactive oxygen species (A) Signup and view all the answers

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

Complex I (C) Signup and view all the answers

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

It connects complex III and complex IV (A) 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?

Coenzyme Q (C) 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?

Formation of reactive oxygen species (C) Signup and view all the answers

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

Complex II (B) 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?

Formation of two water molecules (D) Signup and view all the answers