Electron flow in the mitochondria follows this pathway: a. Complex I rightarrow

Question

Electron flow in the mitochondria follows this pathway: a. Complex I rightarrow complex II rightarrow complex III rightarrow complex IV. b. Complex IV rightarrow Complex III rightarrow Complex II rightarrow complex I. c. Complex I rightarrow Complex III rightarrow complex IV. d. Complex II rightarrow Complex III rightarrow Complex IV. e. Both complex I rightarrow III rightarrow IV and complex II rightarrow III rightarrow IV. When mitochondria axe actively carrying out aerobic respiration a. the pH of the matrix it greater than the pH of the intermembrane space. b. the pH of the matrix is less than the pH of the intermembrane space. c. the pH of the matrix is about the same as the pH of the intermembrane space. d. the pH of the matrix versus the intermembrane space has nothing to do with whether not aerobic respiration is occurring. The final reduced species in the electron transport chain is a. O_2 b. H_2O c. cytochrome c d. coenzyme Q A molecule with a _____ will be reduced if it is paired with a molecule having a _____ In the electron transport chain, complex II also called Succinate CoQ - Oxidoreductase transfers electrons from _____ to _____ In the electron transport chain, complex III also called _____ transfers electrons from CoQH_2 to cytochrome c. The enzyme _____ couples the flow of protons from the inter-membrane space to ATP synthesis. Complex I also called NADH-CoQ Oxidoreductase, transfers electrons from _____ to _____. The F_0 portion of ATP synthase is in the _____ and the F_1 portion is in the _____. According to the _____ theory, ATP synthesis in the mitochondria is based entirely on the proton gradient across the inner mitochondrial membrane. According to the _____ theory, proton gradient is indirectly linked to ATP production only so far as to cause the ATP synthase to physically spin and change conformation. In the ETC, the electrons are passed from one protein complex to another through _____. The energy for driving Oxidative Phosphorylation (which is an endergonic process) comes from the _____.

Explanation / Answer

8) Answer is

both complex I --> complex III --> complex IV and complex II --> complex III --> complex IV

9) Answer is

the pH of the matrix is greater than the pH of the intermembrane space

10) Answer is

H2O

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