Question

Question 9 1 pts An intern in a chemical plant has been tasked with helping a lab determine how a newly discovered compound (BB22) works. The hope is that eventually BB22 could be used in a spray to kill insects and other pests. The lab recently collected some data, summarized in the table below, regarding the impacts of BB22 on the concentration of various molecules in and around the mitochondria, in treated versus control cells. Amount in treated cells relative to control Control - healthy cells not treated with toxin Higher Concentration of molecules in and around the mitochondria () = concentration (ADP) in mitochondria [ATP] In mitochondria [NADH] in mitochondria (NAD) in mitochondria Lower Higher Lower Help the intern and lab out. Review the data above and identify from the list of potential mechanisms below which mechanism would most likely result in all of the data they collected. Select only ONE answer choice. The toxin likely prevents the electron transport chain from oxidizing electron carriers The toxin likely prevents ATP synthase from working The toxin likely prevents the enzymes that are involved in adding ATP to glucose in the early stages of glycolysis from working The toxin likely prevents the processing of acetyl CoA in the Citric Acid Cycle

Answer 1

For question number 9, the correct option should be 1st. In normal electron transport chain, NADH is converted to NAD and ADP is converted to ATP. Therefore, concentration of NADH and ADP should decrease and that of NAD and ATP should increase. But the results are opposite in this case. Therefore the compound is likely to be inhibiting the electron transport chain

In question number 10, answer should be glycolysis because in glycolysis, glucose is metabolized to pyruvic acid as a result of which it's concentration decreases. ATP and NADH is also form during pay off phase, thereby increasing their concentratin.