biomembranes and cell architecture

javier matesanz
Mind Map by javier matesanz, updated more than 1 year ago
javier matesanz
Created by javier matesanz about 4 years ago
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Map about the principal concepts in celular membranes and cell architecture.
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biomembranes and cell architecture
1 Architecture
1.1 Prokaryotes
1.1.1 No organels, but do contain plasma membrane
1.1.1.1 metabolites are thought to diffuse freely
1.1.1.2 primitive cytoskeleton in some bacterias
1.2 Eucaryotes
1.2.1 organels to develope its functions and plasma membrane
1.2.1.1 unique complement of proteins in every organel
1.2.1.2 nucleus and other organels in all cells
1.2.1.2.1 Nucleus
1.2.1.2.1.1 houses the genome of the cell
1.2.1.2.2 Endosomes
1.2.1.2.2.1 internalize plasma membrane proteins and soluble materials from the extracellular medium
1.2.1.2.3 Lysosomes
1.2.1.2.3.1 degrades worn.out or unneeded cellular components
1.2.1.2.4 peroxisomes
1.2.1.2.4.1 oxidize compunds that do not involve ATP process
1.2.1.2.5 mitochondrias
1.2.1.2.5.1 multiple functions for the cell including one of the most important process (production of atp)
1.2.1.2.6 chloroplasts (in plant cells)
1.2.1.2.6.1 absorbs light for the atp production of the plant
1.2.1.2.7 Cytosol
1.2.1.2.7.1 3 mayor proteins
1.2.1.2.7.1.1 actin filaments, microtubules, and intermediate filament
1.2.1.2.7.1.1.1 Cytoskeleton
1.2.1.2.7.1.1.1.1 Structure and stability for the cell
2 Biomembranes
2.1 made of
2.1.1 A phospholipid bilayer
2.1.1.1 its principal compounds are
2.1.1.1.1 -phosphoglycerides, sphingolipids and steroids
2.1.1.2 lipids and many proteins are laterrally mobile in membranes
2.1.1.2.1 Lipid rafts
2.1.1.2.1.1 sites for signaling across the membrane
2.1.1.3 Proteins
2.1.1.3.1 integral and peripheral proteins
2.1.1.3.1.1 integral proteins
2.1.1.3.1.1.1 usually contain
2.1.1.3.1.1.1.1 hydrophobic and hydrophilic domain
2.1.1.3.1.1.1.1.1 from the cytosolic and exoplasmic faces of the membrane
2.1.1.3.1.1.1.2 Porins
2.1.1.3.1.1.1.2.1 Barell-like channel through the membrane
2.1.1.3.1.2 peripheral proteins
2.1.1.3.1.2.1 interact with integral proteins
2.1.1.3.1.2.2 Are in the membrane "temporarily"
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