Given a scientific question, generate an incorrect answer to the given question. The incorrect answer should be a plausible alternative to the correct answer. The answer should be some other item belonging to the same category as the correct answer but should be incorrect.
--------
Question: Dinitrophenol (dnp) is an uncoupler that makes the inner mitochondrial membrane leaky to protons. it was used until 1938 as a what?

Answer: immune system booster

Question: What do you call the type of molecular signals that include insulin and that help regulate a number of biochemical processes?

Answer: nerves

Question: What two gases are the main components of air?

Answer:
oxygen and helium