11.1 The Threestages Of Cell Signaling Flashcards
Reception
Target cells detection of a signaling molecule coming from outside the cell
- when signaling molecule bonds to receptor protein on cells surface or inside the cell
Sutherland
Researched animal hormone epinephrine that stimulates storage polysaccharide beak down
Glycogen breakdown is stimulated by epinephrine by activating a cytotoxic enzyme and its substrate
But it only works when whole cells are there
Meaning it goes through reception transduction and response
Steps of cellular conversation with
Reception
Transduction
Response
Transduction
Binding of the signaling molecule changes the receptor protein in some way initiating transduction stage
Converting the signal to a firm that can bring about a specific cellular response
Signal transduction pathway
Sequence of changes fysfudcuvyhfgtg
In different molecules
Relay molecules - the molecules in the pathway
relay molecules
the molecules in the signal transduction pathway
response
-the traduced signal triggers a specific cellular response
catalysis of an enzyme, activate a gene, etc.