Exhibit 17-1 Use this list of half-reactions to answer the following question(s). MnO4−(aq) + 8H+(aq) + 5e → Mn2+(aq) + 4H2O(l) +1.51 V Cr2O72−(aq) + 6e → 2Cr3+(aq) + 7H2O(l) +1.33 V Cu2+(aq) + 2e−→ Cu(s) +0.34 V Pb2+(aq) + 2e−→ Pb(s) −0.13 V Fe2+(aq) + 2e−→ Fe(s) −0.44 V Al3+(aq) + 3e− → Al(s) −1.66 V Refer to Exhibit 17-1. An electrochemical cell consists of an iron cathode immersed in 1.0 M Fe2+(aq) and a copper anode immersed in 1.0 M Cu2+(aq). Depict this cell using cell notation and determine E°cell.

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.