Fate of Pyruvate

Question 1

Where does TCA cycle occur?

Answer 1

mitochondria

Question 2

Which area of mitochondria contains proteins for ATP synthase, electron transport chain?

Answer 2

inner membrane

Question 3

Which area of mitochondria contain enzyme for TCA cycle?

Answer 3

matrix

Question 4

What is the process of converting pyruvate to Acetyl-CoA called?

Answer 4

oxidative decarboxylation

Question 5

Which complex carries out oxidative decarboxylation?

Answer 5

pyruvate dehydrogenase complex

Question 6

What is the first step in the TCA cycle?

Answer 6

two carbon unit combines with 4 carbon unit to form 6 carbon unit

Question 7

What happens to the 6 carbon unit in TCA cycle?

Answer 7

gets decarboxylated twice

Question 8

What are the 3 yields of TCA cycle?

Answer 8

NADH + H+ and FADH2 and 1 GTP

Question 9

Which enzyme in TCA cycle is located in inner mitochondrial membrane?

Answer 9

succinate dehydrogenase

Question 10

All products of stage 2 metabolism can give rise to what?

Answer 10

acetyl-CoA

Question 11

What can acetyl-CoA be oxidised to?

Answer 11

CO2

Question 12

Each TCA cycle release how many carbons?

Answer 12

2 in the form of 2 CO2’s

Question 13

For each glucose what is the net yield of ATP?

Answer 13

4

Question 14

For each glucose what is the net yield of NADH?

Answer 14

10

Question 15

For each glucose what is the net yield of H+?

Answer 15

10

Question 16

For each glucose what is the net yield of FADH2?

Answer 16

2

Question 17

For each glucose what is the net yield of CO2?

Answer 17

6