1. Muscle Cells: Muscle cells are constantly rebuilding and repairing themselves, especially after exercise. Protein is essential for building and maintaining muscle tissue.
2. Immune Cells: White blood cells, which are a key part of the immune system, rely heavily on protein. Antibodies, which help fight off infections, are made of protein.
3. Neurons: Neurons, the cells that transmit signals in the nervous system, have a high demand for protein. Neurotransmitters, the chemical messengers that allow neurons to communicate, are made of protein.
