Receptors copy - RECEPTORS Cell to Cell Signaling. Cell to...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: RECEPTORS Cell to Cell Signaling. Cell to Cell Communication In a multi-cellular organism it is necessary for cells to communicate to integrate their activities. Eg. - The heart has to beat faster because the muscles need more blood and oxygen. The liver needs to secrete glucose because the brain needs more for energy. Smooth muscle is arterioles need to contract because the blood pressure is falling..... etc. etc. So communication is major and complex! HOW DO THEY DO IT? Answer Electrical impulses (Action Potentials) and chemical messengers Im glad you asked! The study of cell communication involving receptors is the study of chemical messengers Control of organs such as heart, liver, kidney, G.I. tract involves communication. This communication fundamentally involves receptors and chemical messengers. Problem : Brain Cell needs more glucose and must communicate this to the liver. 1. Chemical messenger released into extracellular fuid and then blood. 2. Distributes evenly everywhere in the blood and extracellular fuid. 3. Binds to a receptor on the liver. 4. Receptor relays message into liver. 5. Liver releases glucose into blood stream. Cell Surface Membrane Receptors DeFnition- An integral membrane protein designed to transmit a message into the cell in response to the binding of a chemical messenger. 1. A message is brought to a cell by a chemical messenger. (Eg. - To increase heart rate.) 2. It binds to the receptor. 3. Binding causes a conformation change to the receptor. 4. The conformation change causes the inside face of the receptor to cause some chemical activity which ultimately results in an increased heart rate. Binding Terminology Receptor...
View Full Document

Page1 / 31

Receptors copy - RECEPTORS Cell to Cell Signaling. Cell to...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online