NME 2.31

Question 1

describe link reaction during high cellular energy?

Answer 1

• PDh kinase will inhibit PDH

- reduce conversion of pyruvate to acetyl CoA

Question 2

describe link reaction during low cellular energy?

Answer 2

• PDH phosphatase will stimulate PDH

- increase conversion of pyruvate to acetyl CoA

Question 3

function of kreb cycle?

Answer 3

• provides ATP

- provides reduced NAD and FAD for energy generation

Question 4

what happens to kreb cycle when there is high cellular energy?

Answer 4

reduce kreb cycle

Question 5

what happens to kreb cycle when there is low cellular energy?

Answer 5

increase kreb cycle

Question 6

how many ATP does glycolysis produce?

Answer 6

• 2 ATP

Question 7

how many ATP does link reaction produce?

Answer 7

zero

Question 8

how many ATPs does kreb cycle produce?

Answer 8

2 atp

Question 9

how many ATP does electron transport chain produce?

Answer 9

• 28 ATP

Question 10

where does electron transport chain occur?

Answer 10

• inner membrane of mitochondria

Question 11

describe electron transport chain?

Answer 11

• 5 proteins lined up and electrons pass through

- as electron pass through help movement of protons into the intermembrane space

Question 12

which complex are electrons from NADH moved to?

Answer 12

complex I or NADH dehydrogenase

Question 13

which complex are electrons from FADH2 moved to?

Answer 13

complex 2 or succinate dehydrogenase

Question 14

why is complex V important?

Answer 14

produce ATP

Question 15

what is Coenzyme Q for?

Answer 15

• involved in electrons from complex II and III

Question 16

what is cytochrome c for?

Answer 16

• involved in moveing electrons from complex III and IV

Question 17

what is complex IV called?

Answer 17

cytochrome c oxidase

Question 18

chat is complex V called?

Answer 18

• atp synthase

Question 19

how does ATP synthase produce ATP?

Answer 19

• as protons moved into intermembrane space

- high concentrationa nd diffuse back in and cause rotation of the ATP synthase and produce ATP

Question 20

what is the importance of oxygen?

Answer 20

• oxygen is last electron acceptor
• oxygen needed for kreb cycle
• oxygen needed for electron transport chain
• NADH and FADH2 can no longer release electrons without oxygen

Question 21

what does carbon monoxide and cyanide stop?

Answer 21

• since oxygen is last electron acceptor

- inhibit transfer of electrons from complex IV

Question 22

what does oligomycin do?

Answer 22

• inhibit ATP synthase

Question 23

what does dinitrophenol do?

Answer 23

• uncoupling chemical

- cease ATP production

Question 24

what does uncoupling chemical mean?

Answer 24

• create proton leak

Question 25

what is complex III called?

Answer 25

cytochrome bc-1