Stuff From Past Exams

Front 1

In the electron transport chain and oxidative phosphorylation...

1) How many ATP are produced per FADH2?

2) How many ATP are produced per NADH?

Back 1

1) 2 per FADH2

2) 3 per NADH

Front 2

If you're given a fatty acid, what is the general formula to calculate the following...

1) Acetyl CoA molecules produced

2) FADH2 molecules produced

3) NADH molecules produced

Back 2

1) (1/2)C

2) (1/2)C - 1

3) (1/2)C - 1

Front 3

During digestion of the following fatty acid...
CH3-CH2-CH2-CH2-CH2-CH2-CH2-COOH

1) How many FADH2 are produced?

2) How many NADH?

3) How many acetyl-CoA?

4) When you run the acetyl CoA molecules through the citric acid cycle, how many FADH2 are produced?

5) When you run the acetyl CoA molecules through the citric acid cycle, how many NADH are produced?

6) When you run the total FADH and NADH molecules through electron transport chain & oxidative phosphorylation, how many ATPs are produced?

Back 3

1) 3

2) 3

3) 4

4) 4

5) 12

6) 59 (7 FADH2 x2 and 15 NADH x3)

Front 4

During photosynthesis, for every O2 created how many of the following are created?

1) NADPH

2) Protons pumped through the Q cycle

3) Additional protons contribute to the proton gradient by the splitting of water

4) ATPs produced from the resulting proton gradient

5) Photons absorbed by photosystems I & II combined

Back 4

1) 2 NADPHs created

2) 8 protons pumped through Q cycle

3) 4 additional protons

4) 4 ATPs produced

5) 8 photons abosrbed

Front 5

What are the 5 steps between glucagon binding to the G-protein coupled receptor and phosphorylase kinase activation?

Back 5

1) Glucagon binds to G protein coupled receptor on liver cell surface.

2) Receptor undergoes a conformational change allowing the G protein to exchange GDP for GTP

3) The GTP-bound G protein dissociates

4) and binds adenylcylase activating it and increasing cAMP that binds (protein kinase A) PKA & activates it.