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3368155
Internal Organization of the cell
Description
Mind Map on Internal Organization of the cell, created by LCM on 04/09/2015.
Mind Map by
LCM
, updated more than 1 year ago
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Created by
Cesar Corona Flores
about 9 years ago
Copied by
LCM
about 9 years ago
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Resource summary
Internal Organization of the cell
Membrane Structure
Plasma membrane
Encloses cell, defines its boundaries and maintains the essencial differences between cytosol and extracellular environment
Eucaryotic cells, membranes, endoplasmic reticulum, golgi apparatus, mitochondria, membrane-enclosed
4 phospholipids
phosphatidylcholine
phosphatidylethanolamine
phosphatidylserine
Translocation in apoptotic cell by two mechanism
The phospholipid translocator is inactivated
Scramblase that transfer phospholipids in both directions is activared
sphingomyelin
Ion gradients
Across membrane, activities of membrane proteins, synthesize ATP, movement of selected solute,produce electrical signals
thin film of lipid and protein molecules held by noncovalent interactions
Lipid Bilayer
Fluid structure, impermeable barrier to water-solube molecules
Lipid Molecules
Amphipathics that have hydrophilic end and a hydrophobic end
Phospholipids
Have a polar head group and two hydrophobic hydrocarbon tails
phospholipases
activated by extracellular signals to cleave phospholipid
depends on composition and temperature
Cholesterol
enhance the permeability-barrier
glycolipids
Liposomes
spherical vesicles
Black Membrane
Planar billayers
Phospholipid translocators
Membrane-bound enzymes, catalyze the rapid flip-flop of phospholipids
PARTE DE MATIAS
PARTE DE CÉSAR
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