The mitochondria breaks down food into molecules the cell can use.
Answer: Tyrosine Kinase Receptor
Explanation:
Receptor tyrosine kinases are the high-affinity cell surface receptors for many polypeptide growth factors, cytokines, and hormones. Of the 90 unique tyrosine kinase genes identified in the human genome, 58 encode receptor tyrosine kinase proteins.
They function as a messaging system
