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Cytology

Misc Chapter 3

WordDefinition
Cytology study of cells
Plasma Membrane 7-8nm thin, LM or EM bilipid bilayer
Fluid Mosaic Model Model of Cell Membrane Structure
Hydrophobic hates or repels water
Hydrophilic loves or takes in water
Peripheral Proteins Some Are Enzymes Change Cells Shape
Glycocalyx Sugary Coating acts as biological markers
Intracellular -ICF Fluid in cell
Extracellular- ECF Fluid outside cell
Intercellular Fluid Between Adjacent Cells
Tight Junctions velcro-where adjacent cells are fused
Desmosomes Anchoring-cell junction joined by filaments
Gap Junctions bond-channel between cells
Microvilli Shaggy Hairs increase plasma membrane surface area
Cilia move in waves
Flagella Whiplike propel cell(sperm)
Plasma Membrane Function Protection
Membrane Transport Traffic across plasma membrane
Passive Processes Cross membrane without ATP
Active Processes Cross membrane with ATP
Simple Diffusion movement of lipid soluble or very small particles
Increased Temperature Increases Rate of Diffusion
Increased Gradient Increases Rate of Diffusion
Increased Viscosity Increases Diffusion
Increased Molecular Weight Decreases Rate Of Diffusion
Created by: schell912
 

 



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