Problem:
Explain how you get the answer for these 3 Biology questions please? (Answers attached)
Question 1: The overall equation for electron transport is: NADH + H+ + 1/2 O2 ? NAD+ + H2O (Delta E=+1.14, Delta G=-52668)
a) Some of the energy which is released by this process is used to synthesize 3 moles of ATP. What is the efficiency of energy capture in this process?
(Answer: 43%)
Question 2: The following are the reduction potentials for 4 newly discovered compounds:
A(ox) + 2e- ? A(red) Eo = -1.00 volts
B(ox) + 2e- ? B(red) Eo = -0.95 volts
C(ox) + 2e- ?????? C(red) Eo = -0.85 volts
D(ox) + 2e- ?????? D(red) Eo = -0.75 volts
Which, if any, of the following reactions, proceeding as written, will yield sufficient energy to synthesize 1 ATP? Reaction 1: A(red) + B(ox) ?A(ox) + B(red)
Reaction 2: A(red) + C(ox) ? A(ox) + C(red)
Reaction 3: A(red) + D(ox) ? A(ox) + D(red)
(Answer: Only Reaction #3)
Question 3: The oxidation/reduction reaction: X(ox) + Y(red) ? X(red) + Y(ox) involves a transfer of 2 electrons and has a ?Go = -23,000 cal/mole, as written. Determine the ?Eo for this reaction.
(Answer: Delta E=+0.5)
Show the pedigree and your calculation