question archive A number of known poisons kill by interfering with cellular respiration
A number of known poisons kill by interfering with cellular respiration
Subject:BiologyPrice: Bought3
A number of known poisons kill by interfering with cellular respiration. Use only the information provided below, along with the information in your textbook, to describe in detail the consequences of exposure to each of the following substances on cellular respiration. a. Although it is an essential mineral in minute quantities, excessive amounts of compounds containing arsenic can bind to lipoic acid. Free (unbound) lipoic acid is an important cofactor for pyruvate dehydrogenase, an enzyme required for pyruvate oxidation. b. Rotenone is concentrated in the seeds and stems of some plants as a defense against consumption by a variety of organisms. It can be used as a broad-spectrum pesticide, as it is toxic to a variety of organisms including insects, fish, and mammals. It prevents complex I from oxidizing NADH. 2
BIOL 1203 Summer 2020 Name: c. Certain bacteria, fungi, algae, and plants produce cyanide to protect themselves against consumption by other organisms. The cyanide ion (CN ) binds to cytochrome C, preventing it from accepting electrons. d. Oligomycin is an antibiotic that acts by binding to ATP synthase, blocking its proton channel. 3
