Kaplan test 6 biological sciences number 12

[2010premed]

---

Members do not see this ad.

Stand alone question: Adding a strong oxidizing agent to the inner mitochondrial matrix would have what effect on cellular respiration?
A. Oxidation of high potential electron carriers such as FADHH2 and NADH will prevent electrons from entering the electron transport chain, thus reducing the number of ATP produced by each glucose molecule.
B. Oxidation will regenerate high potential electrons carriers such as NAD+ and FADH, thus allowing glycolysis to continue.

correct answer: A

help please

 

[ahamdi2]

Stand alone question: Adding a strong oxidizing agent to the inner mitochondrial matrix would have what effect on cellular respiration?
A. Oxidation of high potential electron carriers such as FADHH2 and NADH will prevent electrons from entering the electron transport chain, thus reducing the number of ATP produced by each glucose molecule.
B. Oxidation will regenerate high potential electrons carriers such as NAD+ and FADH, thus allowing glycolysis to continue.

correct answer: A

help please

you should be aware that FADHH and NADH are reduced (meaning have gained hydrogens) forms of FADH and NAD+ . Also be aware that those are the H's that are going to be pumped through the electron transport chain to produce the Hydrogen gradient that is used by ATP synthase to produce ATP for the cell. So essentially the Strong oxidizing agent is going to keep those molecules in there oxidized form FADH and NAD+ so there will be no hydrogen's for those molecules to deliver to the elcetor transport chain, so no Hydrogen gradient and no ATP.