Cell Signaling Overview | University of Wolverhampton - Edubirdie

University:
University of Wolverhampton
Course:
4PY019 | Pharmacy
Academic year:

2024
Views:

499

Pages:

2
Author:

Sara

Cell Communication Determines cell's functional properties through short & long-term responses Integration of Signals Multiple signals combine to regulate cell behavior Eukaryotes Make decisions based on cell-cell communication Dictyostelium Prime mold transitioning from primitive multicellular organism Plasma Membrane Composition Composed of lipids, proteins, and carbohydrates Roles of Membrane Maintains electrical potential, organizes chemical reactions Types of Communication Direct intercellular, secreted chemical signals, anchored cellular messenger Functions of Plasma Membrane Separates cell components, maintains chemical differences Transporters Facilitate movement of molecules across the membrane Receptors Receive chemical signals and initiate responses Enzymes Catalyze chemical reactions involved in cell signaling Cytoplasmic Bridges Allow direct intercellular communication between adjacent cells Gap Junctions Allow rapid movement of ions and metabolites between cells Secreted Chemical Signals Enable multiple cells to respond collectively Hormones Chemical signals released into the bloodstream for widespread effects Neurotransmitters Chemicals that transmit signals between neurons 1/2 Local Mediators Act locally on neighboring cells, autocrine or paracrine action Anchored Extracellular Messenger Proteins on neighboring cells bind to keep tissues together Response to Infection Immune response involving cell-surface recognition and activation Lectin Proteins Recognize sugars on cell surfaces, involved in immune responses 2/2

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