Chem- Krebs/etc/cori

Question 1

What is the fuel for the krebs cycle

Answer 1

Acetyle CoA (made from the 2 pyruvate in glycolosis)

Question 2

How does pyruvate change to acetyl CoA

Answer 2

pyruvate dehydrogenase

Question 3

rate limiting step of krebs

Answer 3

isocitrate dehyrogenase

Question 4

end prducts of Krebs

Answer 4

3 NADH
1FADH
1GTP
2C02

Question 5

what do each NADH and FADH produce

Answer 5

NADH- 3 atps
FADH- 2 atps

Question 6

Where can pros enter the krebs

Answer 6

SOFA
-succinayl CoA
Oxaloacetate
Fumerate
A ketogluterate

Question 7

what are the 2 points fat can enter the krebs

Answer 7

A ketogluterate
succinyle Coa

Question 8

How does nadh made in the cytosol pass into the mitochondria for the ETC

Answer 8

malate aspartate
glycerol 3 phosphate shuttles

Question 9

How does the malate aspartate shuttle work

Answer 9

cytosolic oxaloacetate reduced by malate by NADH

malate crosses mito
reoxidizes to oxaloaceptate

(has to conervte to asparatete to cross back out)

Question 10

How does the gyleroc 3 phos shuttle work

Answer 10

DHAP is reduced to G3P and enters the mito and reacts with FAD to make FADH

Question 11

where does NADH enter the ETC

Answer 11

Complex I

Question 12

Where does FADH enter the ETC

Answer 12

Complex II (succinate dehydrogenase complex w coenzyme q)

Question 13

What happens at complex IV

Answer 13

copper is used to transfer electrons

Question 14

What happens at complex V

Answer 14

ATP synthase
-Oxygen is electron acceptor and oxygen is consumed and ate generated

Question 15

What inhibits cytochrome C

Answer 15

Cyanide and Carbon monoxide

Question 16

What is the Cori cycle

Answer 16

the metabolic pathway that occurs in the liver and is used to prevent lactic acid build u (converts it back to pyretic acid then to glucose thru glucneogenesis)

Question 17

How much ATP does the cori cycle use

Answer 17

Uses 4 molecules of ATP

Question 18

What is the goals of the pentose phosphate shuttle (3)

Answer 18

fatty acid synthesis
Detoxification
protection from free rads

Question 19

What is the fuel for the pentose phosphate path and limiting enzyme

Answer 19

Cytosol
G6P

Glucose 6 phosphate dehydrogenase

Question 20

End result of pentose phosphate

Answer 20

2 NADH
Ribose (for nucleotide synthesis)

Question 21

what is the initial step in glycogenesis

Answer 21

Glycogen synthase (also rate limiting)

Question 22

What is the rate limiting of glycogenolysis

Answer 22

Glycogen phosphorylase A/B

Question 23

How is glycogenolysis regulated

Answer 23

Stimed by glucagon and epinephrin

Inhibited by insulin