Zfoods cook faster when placed in a pressure cooker. this is because the pressure on the surface of the water is the atmospheric pressure, and the boiling point of water is normal. foods cook faster when placed in a pressure cooker. this is because the pressure on the surface of the water is the atmospheric pressure, and the boiling point of water is normal.

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.