During photosynthesis, plant cells use sunlight as an energy source; animal cells cannot do this. What substance do Animal cells lack, that allows plant cells to carry out photosynthesis?(SC.8. L.18.1)a. ATPb. Carbon Dioxide. Chlorophyll. Oxygen

Compare and contrast physical changes with chemical changes.

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

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.