Electron Transport Chain Flashcards

1
Q

All members of the electron transport chain are protons except for ———

A

Coenzyme Q

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2
Q

When COQ accepts electrons it becomes oxidized to ubiquinol,true /false

A

False it becomes reduced

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3
Q

Each cytochrome contains a heme group which is made of ———and ———-

A

Porphyrin ring and iron

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4
Q

The heme iron is reversibly converted from its ferric state to its ferrous state ,true or false

A

True

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5
Q

Cytochrome c oxidase is the only electron carrier in which the heme iron can react directly with oxygen,true or false

A

True

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6
Q

Cytochromes can only accept one electron at a time ,true or false

A

True

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7
Q

When each electron passes through——— 2 H+ are pumped to the intermediate space

A

Complex 4

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8
Q

Pumping of electrons only happens at complex —————,—————and ———

A

1-3and 4

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9
Q

————is the only cytochrome that is water soluble

A

Cytochrome c

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10
Q

Which cytochrome plays an important role in programmed cell death

A

Cytochrome c

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11
Q

Cytochrome c and co-q are not part of the inner mitochondria membrane,true or false

A

True

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12
Q

Electron transport chain are arranged in decreasing redox potential true or false

A

False:they are arranged in increasing redox potential

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13
Q

Between complex one and complex 4 which one has a more positive redox potential

A

Complex 4

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14
Q

For every 4protones produced one atp molecules are produced ,TRUE OR FALSE

A

True

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