8 steps

Question 1

What is a mnemonic for Krebs?

Answer 1

Can I Keep Selling Sex For Money, Officer?

Question 2

1st step - (Can)

Answer 2

Citrate is form from acetyl CoA and oxaloacetate.

Question 3

What is the enzyme for step 1?

Answer 3

Citrate synthase

Question 4

What inhibits citrate synthase?

Answer 4

ATP!

Question 5

2nd Step (I)

Answer 5

Isocitrate is produced from citrate

Question 6

Enzyme for step 2?

Answer 6

aconitase

Question 7

Step 3 - (Keep)

Answer 7

alpha-ketoglutarate is produce from isocitrate

Question 8

Enzyme used in Step 3?

Answer 8

Isocitrate dehydrogenase

Question 9

What is the rate limiting enzyme in Krebs?

Answer 9

Isocitrate dehydrogenase (step 3)

Question 10

What activates isocitrate dehydrogenase?

Answer 10

ADP

Question 11

What inhibits isocitrate dehydrogenase?

Answer 11

ATP and NADH

Question 12

One ______ is produced in the 3rd step.

Answer 12

NADH

Question 13

One molecule of what is released in the 3rd step.

Answer 13

CO2

Question 14

4th step (Selling)

Answer 14

succinyl CoA is produced from alpha-ketoglutarate

Question 15

What enzyme is used in 4th step?

Answer 15

alpha-ketoglutarate dehydrogenase

Question 16

What doe alpha-ketoglutarate require?

Answer 16

Vitamin B1 - thiamine
Vitamin B2 - riboflavin
Vitamin B3 - Niacin
Vitamin B5 - Pantothenic Acid

Question 17

What molecule is produced and what molecule is released in step 4?

Answer 17

One NADH

one CO2

Question 18

Step 5 (Sex)

Answer 18

Succinct is produced from succinyl CoA

Question 19

What enzyme catalyzed step 5 reaction?

Answer 19

Succinct thiokinase aka succinyl CoA synthetase

Question 20

One high energy ____ is produce in step 5.

Answer 20

GTP

Question 21

GTP can react with what? To make what?

Answer 21

ADP

ATP

Question 22

6th Step: (For)

Answer 22

fumarate is produce from succinate

Question 23

What is enzyme for step 6?

Answer 23

Succinate dehydrogenase

Question 24

What is the only TCA cycle enzyme bound to the mitochondrial membrane instead of being soluble in the mitochondrial matrix?

Answer 24

succinate dehydrogenase

Question 25

Succinate dehydrogenase is the only TCA cycle enzyme that directly uses what?

Answer 25

FAD

Question 26

What molecule is produced in step 6?

Answer 26

1 FADH2

Question 27

What is the non-protein part of a conjugated protein called?

Answer 27

prosthetic

Question 28

FAD is a covalently-bounded ________ group.

Answer 28

prosthetic

Question 29

Step 7 (Money)

Answer 29

Malate is produced from fumarate

Question 30

What enzyme converts fumarate into Malate in step 7?

Answer 30

fumarase

Question 31

Step 8 (officer)

Answer 31

Oxaloacetate is produced from malate

Question 32

Enzyme used for step 8? Conversion of Malate into oxaloacetate.

Answer 32

Malate dehydrogenase

Question 33

Is step 8 reversible?

Answer 33

YES

Question 34

Oxaloacetate is added to what to re-enter the Krebs cycle?

Answer 34

Acetyl CoA

Question 35

What molecule is produce at stage 8?

Answer 35

One NADH