Acetyl CoA and ETC part 3

Question 1

Electron transport

Answer 1

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

Question 2

In the electron transport system,

Answer 2

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

Question 3

There are 4 PROTEIN COMPLEXES:

Answer 3

Complex I
Complex II
Complex III
Complex IV

Question 4

Complex I

Answer 4

NADH dehydrogenase

Question 5

Complex II

Answer 5

Succinate dehydrogenase

Question 6

Complex III

Answer 6

CoQ-Cytochrome c reductase

Question 7

Complex IV

Answer 7

Cytochrome c oxidase

Question 8

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

Answer 8

Sonication

Question 9

The interior of the SUBMITOCHONDRIAL particle represents the

Answer 9

Intermembrane space

Question 10

Electron transport chain is located in the

Answer 10

Inner mitochondrial membrane

Question 11

Electron transport chain found in INVAGINATIONS called

Answer 11

Cristae

Question 12

Erythrocytes DO NOT HAVE

Answer 12

Mitochondria

Question 13

CANNOT USE OXYGEN to generate utilizable energy (Anaerobic)

Answer 13

Erythrocytes

Question 14

Contain NUMEROUS mitochondria

Answer 14

Cardiac tissue

Question 15

use oxygen to generate utilizable energy (highly aerobic)

Answer 15

Cardiac tissue

Question 16

coenzyme products that CAN LEAVE THEIR ENZYME

Answer 16

Mitochondrial NADH
Mitochondrial FADH2

Question 17

Enzymes that TRANSFER ELECTRONS TO COENZYME Q (Ubiquinone)

Answer 17

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

Question 18

From GLYCEROPHOSPHATE SHUTTLE of cytoplasmic NADH

Answer 18

Glycerophosphate dehydrogenase

Question 19

From MALATE-ASPARTATE SHUTTLE of cytoplasmic NADH

Answer 19

Malate dehydrogenase

Question 20

from FATTY ACID during BETA-OXIDATION

Answer 20

Fatty acyl-coenzyme-A

Question 21

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

Answer 21

• 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

Question 22

Electron is transported by electron carriers grouped together as

Answer 22

3 large protein complexes

Question 23

MULTISUBUNIT PROTEIN complex containing

Answer 23

Complex I (NADH-Q reductase)

Question 24

Iron-sulfur cluster
Coenzyme-Q

Answer 24

Complex I (NADH-Q reductase)

Question 25

Hydrogen and electrons are transferred from NADH to

Answer 25

Flavin mononucleotide (FMN)

Question 26

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

Answer 26

FMN

Question 27

a mobile carrier, transfers hydrogen to complex III

Answer 27

QH2