BIOL 2107K Lecture Notes - Lecture 7: Flowchart, Neuron, Paracrine Signalling
Document Summary
Study guide chapter 7 cell signaling and communication. Cells may receive signals from varying distances in a multicellular organism. Autocrine- signals diffuse to and affect the cell that make them; for example, part of the reason many tumor cells reproduce uncontrollably is because they self-stimulate cell division by making their own division signals; cancer cells. Paracrine- signals diffuse to and affect nearby cells; an example is a neurotransmitter made by one nerve cell that diffuses to an adjacent cell and stimulates it; nervous system. Endocrine- signals to distant cells called hormones travel through the circulatory system. Endocrine; must have a specific structure to attach. Create a flowchart or diagram of cell signaling involving either a water-soluble, or a lipid- soluble signal. Protein kinase- an enzyme that catalyzes the transfer of a phosphate group from atp to another molecule; direct because it phosphoralizes.
