For questions regarding the chemistry of living organisms.
Biochemistry concerns itself with any and all kinds of chemical reactions that take place within living organisms.
This includes biomolecules, such as fats (lipids), proteins, carbohydrates and nucleic acids (such as DNA) and their interactions, from the individual steps of a reaction all the way to complex systems capable of transforming food into energy and developing and storing memories.
If your question is related to fictional creatures, consider using the creature-design tag.
If your question is related to extraterrestrial life or lifeforms that fundamentally function unlike any found on Earth, consider using the xenobiology tag.
If your question concerns more general biological subjects such as behaviour or genetics, consider using the biology tag.
