Chapt 15 - mechanisms of cell communication

an extracellular signal known as a _______ bind to the receptor protein on the surface of a cell membrane

2 types of receptors; the majority of receptors. are _______ receptors
and some receptors are _______

_____ receptors have a hydrophillic signal molecule

A mechanism for long-range signalling

4 ways which signaling may occur

this signal method involves a membrane bound cell

this type of signaling method is for short-range
and cells communicate by autocrine signaling

this type of signaling uses a hormone for communication

this communication requires a transmembrane protein

this small hydrophobic signal is transported by a carrier protein for this type of communitcation

this type of communication requires a chemical synapse and a neurotransmitter

uses the blood stream for a signal path in long-range signaling to the target cell

one way to ensure that neighboring cells act in a coordinated way invloves ___ ___

gap junctions function to_________________________________________________________________________________________ is signal communication

T/F: different types of cells can have different responses to the same extracellular signal molecule
True False

different types of cells can have different responses to the same extracellular signal molecule. This is due to 2 things

some signal molecules enter a targets cell's cytoplasm and bind to ___ ____

Most signal molecules are hydrophilic and therefoe can not diffuse through the lipid bilayer. These hydrophilic surface receptors bind to _________________

3 major families of cell surface receptors

all 3 major families of cell-surface receptors are ________ proteins