Acetyl CoA and ETC part 3 Flashcards

1
Q

Electron transport

A
  • Uses ELECTRON CARRIERS
  • Transfers HYDROGEN IONS and ELECTRONS from NADH and FADH2 until they combine with OXYGEN
  • Forms H2O (water)
  • Produces ATP energy
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2
Q

In the electron transport system,

A
  • The electron carriers are ATTACHED to the INNER MEMBRANE of mitochondrion
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3
Q

There are 4 PROTEIN COMPLEXES:

A

Complex I
Complex II
Complex III
Complex IV

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4
Q

Complex I

A

NADH dehydrogenase

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5
Q

Complex II

A

Succinate dehydrogenase

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6
Q

Complex III

A

CoQ-Cytochrome c reductase

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7
Q

Complex IV

A

Cytochrome c oxidase

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8
Q

Disruption by ______________ causes the inner membrane to form SMALL VESICLES with ATP synthase structures on the EXTERIOR.

A

Sonication

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9
Q

The interior of the SUBMITOCHONDRIAL particle represents the

A

Intermembrane space

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10
Q

Electron transport chain is located in the

A

Inner mitochondrial membrane

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11
Q

Electron transport chain found in INVAGINATIONS called

A

Cristae

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12
Q

Erythrocytes DO NOT HAVE

A

Mitochondria

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13
Q

CANNOT USE OXYGEN to generate utilizable energy (Anaerobic)

A

Erythrocytes

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14
Q

Contain NUMEROUS mitochondria

A

Cardiac tissue

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15
Q

use oxygen to generate utilizable energy (highly aerobic)

A

Cardiac tissue

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16
Q

coenzyme products that CAN LEAVE THEIR ENZYME

A

Mitochondrial NADH
Mitochondrial FADH2

17
Q

Enzymes that TRANSFER ELECTRONS TO COENZYME Q (Ubiquinone)

A
  • Glycerophosphate dehydrogenase
  • Malate dehydrogenase
  • Fatty Acyl-coenzyme-A dehydrogenase
18
Q

From GLYCEROPHOSPHATE SHUTTLE of cytoplasmic NADH

A

Glycerophosphate dehydrogenase

19
Q

From MALATE-ASPARTATE SHUTTLE of cytoplasmic NADH

A

Malate dehydrogenase

20
Q

from FATTY ACID during BETA-OXIDATION

A

Fatty acyl-coenzyme-A

21
Q

ELECTRON TRANSPORT process is like an ELECTRONIC WATERFALL that powers 3 PROTON pump

A
  • FREE ENERGY of the electron becomes LOWER as it passed on (like a hot ball becoming COOLER as it is passed on)
  • Amount of energy released is SUFFICIENT to meet the requirements of the proton pump
22
Q

Electron is transported by electron carriers grouped together as

A

3 large protein complexes

23
Q

MULTISUBUNIT PROTEIN complex containing

A

Complex I (NADH-Q reductase)

24
Q

Iron-sulfur cluster
Coenzyme-Q

A

Complex I (NADH-Q reductase)

25
Q

Hydrogen and electrons are transferred from NADH to

A

Flavin mononucleotide (FMN)

26
Q

FMNH2 transfers hydrogen to Fe-S clusters and then coenzyme Q reducing Q regenerating

A

FMN

27
Q

a mobile carrier, transfers hydrogen to complex III

A

QH2