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Cellular Communication
Chapter 11
13
Biology
Undergraduate 2
10/13/2013

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Term
Gap Junction
Definition
Share a wall (type of direct contact signaling)
Term
Direct Contact
Definition
Gap Junction (share a wall) or Cell-Cell recognition (protruding molecules come in contact)
Term
Local Signaling
Definition
Paracrine (discharges molecules of a local regulator into extracellular fluid)

Synaptic (release of NT's into synapse)
Term
Long Distance
Definition
Endocrine (horomonal signaling - specialized cells secrete horomones into the blood)
Term
Reception
Definition
Stage 1: detection
Term
Transduction
Definition
Stage 2: binding of signaling molecule changes the receptor protein in some way, initiating transduction.
Term
Response
Definition
Stage 3: Transduction signal finally triggers some kind of cellular response
Term
How does epinephrine have different effects on different tissue in the same organism?
Definition
Term
Receptor tyrosine kinases
Definition
Phophorylate and amino acid
Term
Ion channel receptors
Definition
Open and close to let ions through
Term
G-protein coupled receptors
Definition
On/off switches
Term
Phosphorylation cascade
Definition
chain of enzymes that phosphorylate each other to amplify signal
Term
Apoptosis
Definition
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