2 chemistry questions due asap please help

Read page 658: Chemistry Link to Health: Toxins: Inhibitors of Electron Transport, in your text. 

• What are some of the other toxins that can inhibit electron transport?  
• What is the mechanism by which these inhibitors work?

Cannot use toxines Rotenone, Coenzyme, amytal, demerol, antimycin, cyanide and carbon monoxide, cytochrome. These were the toxins in the text, I need A FEW OTHERS please answer fast! NO PLAGERISM PLEASE,