Chapter 6 (pdf15)

Question 1

The transition step of glycolysis links it to

Answer 1

TCA cycle

Question 2

in the transition step, CO2 is removed through…

Answer 2

decarboxylation

Question 3

in the transition step NAD+ is reduced to…

Answer 3

NADH

Question 4

• each______ enters the transition step

- –reaction occurs TWICE for one glucose

Answer 4

pyruvate

Question 5

yield from transition step includes

Answer 5

• reducing power NADH
• precursor metabolites
• —Acetyl CoA

Question 6

completes the oxidation of glucose

Answer 6

TCA cycle

Question 7

incorporates acetyl CoA from transition step*

-releases CO2 in net reaction*

Answer 7

TCA cycle

Question 8

cycle turns ONCE for each acetyl CoA

-TWO turns for each glucose molecule

Answer 8

TCA cycle

Question 9

the TCA cycle produces

Answer 9

• 2 ATP
• 6 NADH
• 2 FADH2
• 2 precursor metabolites

Question 10

Nocardia loves the TCA cycle because

Answer 10

1. complete oxidation of glucose ( big bang for buck)
2. critical intermediates* for amino acids and lips (transition step)
3. More reduced equivalents for respiration

Question 11

why dont other species care as much about the TCA cycle?

Answer 11

They have Fermentation.
Use this pathway for making proteins not for
maximum reducing equivalents

Question 12

each glucose consumed- glycolysis

Answer 12

2 NADH

Question 13

each glucose consumed- TCA cycle

Answer 13

2FADH2 + 6NADH

Question 14

recycles NADH and FADH2 and couples to synthesis of ATP

Answer 14

respiration

Question 15

in respiration, oxidative phosphorylation has two parts…

Answer 15

1. electron transport chain
   - generated proton motive force (and NADH+ and FAD)
2. ATP synthase
   - use proton gradient from (PMF) to synthesize ATP

Question 16

group of membrane-embedded electron carriers*

-transfer of electrons produces a proton motive force

Answer 16

Electron transport chain in respiration

Question 17

transfer of electrons in respiration produces

Answer 17

proton motive forces

Question 18

four types of electron carriers

Answer 18

1. Flavoproteins
2. Iron-sulfur proteins
3. Quinones
4. Cytochromes

Question 19

respiration is either

Answer 19

aerobic or anaerobic

Question 20

in_____ respiration some prokaryotes have simplified ETC compared to eukaryotes

Answer 20

aerobic

Question 21

mechanism of proton motive force

-certain carriers accept BOTH protons and electrons, some only accept electrons

Answer 21

respiration

Question 22

pump protons across membrane proton gradient

Answer 22

proton motive force

Question 23

first proposed the chemiosmotic theory and won nobel prize

Answer 23

Peter Mitchell

Question 24

Harvest energy from proton motive force to synthesize ATP

Answer 24

ATP synthase

Question 25

permits protons to flow back into the cell

Answer 25

ATP synthase

Question 26

produces enough energy to phosphorylate ADP—->ATP

- 1 ATP is formed from entry of 3 protons

Answer 26

ATP synthase

Question 27

-CO2 is removed through decarboxylation

Answer 27

transition step

Question 28

-Remaining 2-C acetyl group joined to coenzyme A to form Acetyl CoA

Answer 28

transition step

Question 29

-NAD+ is reduced to NADH

Answer 29

transition step

Question 30

Modifies 3-C pyruvate from glycolysis to 2-C acetyl CoA

Answer 30

transition step