ELECTRON CHAIN TRANSPORT

Question 1

Components of the ETC Are Contained in

Answer 1

Four Large Protein Complexes

Question 2

Electrons flow through the respiratory chain through a redox span passing through THREE large protein complexes

Answer 2

COMPLEX I – NADH-Q Oxidoreductase
COMPLEX III – Q-Cytochrome c Oxidoreductase
COMPLEX IV – Cytochrome c Oxidase

Question 3

are a class of oxidizing enzymes containing as electron acceptorflavin-adenine dinucleotide (FAD), which is an electron carrier similar to NAD in its action

Answer 3

FLAVOPROTEINS

Question 4

any of a number of compounds consisting of heme bonded to a protein

function as electron transfer agents in many metabolic pathways, especially cellular respiration

Answer 4

CYTOCHROMES

Question 5

is a large L-shaped multi-subunit protein that catalyzes electron transfer from NADH to Q (ubiquinone)

Answer 5

NADH-Q Oxidoreductase (COMPLEX I)

Question 6

and during the process four H+ ions are transferred across the membrane into the intermembrane space

Answer 6

COMPLEX I

Question 7

FADH2 is formed during the conversion of succinate to fumarate in the citric acid cycle.

Answer 7

COMPLEX II

Succinate-Q reductase

Question 8

Electrons are passed from QH2 to Cytochrome C via this Complex

Answer 8

COMPLEX III
 (Cytochrome c Oxidoreductase)

Question 9

the reduced cytochrome c is oxidized by Complex IV with the concomitant reduction of Oxygen in to 2 molecules of water

Answer 9

COMPLEX IV

Question 10

the flow of electrons through the respiratory chain generates ATP by the process of

Answer 10

Oxidative Phosphorylation

Question 11

postulates that the two processes are coupled by a proton gradient across the inner mitochondrial membrane 
      so that the proton motive force
      caused by the electrochemical
      potential difference drives the
      mechanism of ATP synthesis

Answer 11

Chemiosmotic Theory (Peter Mitchell)

Question 12

ATP PRODUCTION:
GLYCOLYSIS: _ MOLS
KREB’S CYCLE: _ MOLS
ELECTRON CHAIN TRANSPORT: _ MOLS

Answer 12

GLYCOLYSIS: 2 MOLS
KREB’S CYCLE: 2 MOLS
ELECTRON CHAIN TRANSPORT: 34 MOLS