Homework Answers
Correct Options
I) Is regulated by the availability of ADP and Pi.
Reason: Oxidative phosphorylation requires a supply of NADH, O2, ADP, and Pi.
III) Increases with a higher concentration of reduced cytochrome c.
Reason: Cytochrome c oxidase is the final protein complex in the electron transport chain. So, more reduced cytochrome c means higher will be the oxidation of cytochrome c.
4Cyt cred + O2 + 8H+ --------------> 4Cyt cox + 2H2O + 4H+
The reaction catalyzed is the oxidation of cytochrome c and the reduction of oxygen
IV) Is regulated by activity of the ADP-ATP translocator.
Reason: Inhibitors like atractyloside or bongkrekic acid specifically inhibits ADP-ATP translocase which in turn stops the oxidative phosphorylation. This is the reason why the ADP-ATP translocator is essential.
Incorrect Option
II) Is reduced when the ratio of [NADH]/[NAD+] is high.
- Oxidative phosphorylation increases when [NADH]/[NAD+] is high.
Ans. I,III,IV
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(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
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