Cell signalling Flashcards
Describe the paracrine system
When one cell produces and released small molecules/hormones, another cell may have complementary surface receptors which these molecules may attach to, eliciting a reaction. This occurs over a SHORT distance
Describe the endocrine system
Similar to the paracrine system… However, the small molecules enter the blood stream and travel to other molecules over LONGER distances
Describe ‘autocrine process’
When cells which release small molecules/hormones has the complementary receptor to the molecule it releases
Define ‘signal perception’ and ‘signal transduction’
Signal perception - when ligand latches onto a receptor
Signal transduction - when the protein starts to inhibit a reaction
After this occurs is the actual cellular response
