Systems of specialized cells within organisms help them perform the essential functions of life, which involve chemical reactions that take place between different types of molecules, such as water, proteins, carbohydrates, lipids, and nucleic acids. All cells contain genetic information in the form of DNA molecules.
This hormone was made by a different cell, and it’s now being taken in by another cell using a steroid receptor. The steroid receptor is affecting the process of transcription in the nucleus so that a specific type of mRNA can exit the cell and form a new protein in the ribosomes. This formation wouldn’t be possible unless specialized cells were working together to perform this function.
