How many grams of sodium bromide must be dissolved in 400.0 g of water to produce a 0.500 molal solution?
a. 20.6 g
b. 20.0 g
c. 52.1 g
d. 2.00 g

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

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.

Which process results in the release of energy stored in the products of photosynthesis? a. polymer synthesis b. depolymerization c. digestion d. cellular respiration