I attempted the problem, but I\'m not sure if I answered anything correctly and

Question

I attempted the problem, but I'm not sure if I answered anything correctly and I also left the other blank. Please answer the ENTIRE problem so I can make sure my answers are correct and to help me with the parts I don't know. Thank you! I appreciate it.

Consider the schematic given below of the electron-tr chain ansport Cytochrome Cytochrome NADH reductase Oxidase dehydrogenase Cytochrome c Complex Complex complex inner mitochondrial membrane ubiquinone 100 nm a. Fill in the missing labels b. Which activated carriers deposit electrons into the chain? NADH c. Where do each of the activated carriers deposit electrons into the chain? NADH deposits elections into the NADH dehydrogenase complex d. Why don't all activated carriers result in the same amount of ATP production? e. What is the final electron acceptor at the end of the electron transport chain? Oxygen f. What drives the electron to move in the correct direction down the chain? (Why doesn't the electron ever move up the electron transport chain?)

Explanation / Answer

1. NADH CoQ reductase complex I , Coenzyme Q or Ubiquinone via FADH2, cytochrome b-c1 reductase or complex iii, cytochrome c, cytochrome c o oxidase .

2. The NADH acts as the electron carrier which then passes on to coenzyme Q. Complex II or succinate

3. The electron is being passed on to coenzyme Q. Succinate also passes its electrons on Coenzyme Q.

4. Same amount of ATP is not generated because in complex I , the electron is being provided by NADH and yields 3 ATP, whereas the complex II that provides electrons via FADH2, gives 2 ATP. Thus the difference in ATP yield.

5. The final electron acceptor is molecular oxygen.

6. ATP synthase prevents the chain to move back. If the protons are somehow moving backwards then mechanical work is enabled by ATP synthase, which convert mechanical work into chemical energy and produce ATP.

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