Which is true of the enthalpy of a reaction?
A. Its value does not depend on which reactions are added
B. Its value is always a negative kJ/mol
O
C. Its value is the same as the enthalpy of each intermediate reaction
O
D. Its value depends on which reactions are added
SUBMIT

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.