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6126085
biomembranes and cell architecture
Descrição
Map about the principal concepts in celular membranes and cell architecture.
Sem etiquetas
biologia
celulas
membranas
Mapa Mental por
javier matesanz
, atualizado more than 1 year ago
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Criado por
javier matesanz
mais de 8 anos atrás
15
0
0
Resumo de Recurso
biomembranes and cell architecture
Architecture
Prokaryotes
No organels, but do contain plasma membrane
metabolites are thought to diffuse freely
primitive cytoskeleton in some bacterias
Eucaryotes
organels to develope its functions and plasma membrane
unique complement of proteins in every organel
nucleus and other organels in all cells
Nucleus
houses the genome of the cell
Endosomes
internalize plasma membrane proteins and soluble materials from the extracellular medium
Lysosomes
degrades worn.out or unneeded cellular components
peroxisomes
oxidize compunds that do not involve ATP process
mitochondrias
multiple functions for the cell including one of the most important process (production of atp)
chloroplasts (in plant cells)
absorbs light for the atp production of the plant
Cytosol
3 mayor proteins
actin filaments, microtubules, and intermediate filament
Cytoskeleton
Structure and stability for the cell
Biomembranes
made of
A phospholipid bilayer
its principal compounds are
-phosphoglycerides, sphingolipids and steroids
lipids and many proteins are laterrally mobile in membranes
Lipid rafts
sites for signaling across the membrane
Proteins
integral and peripheral proteins
integral proteins
usually contain
hydrophobic and hydrophilic domain
from the cytosolic and exoplasmic faces of the membrane
Porins
Barell-like channel through the membrane
peripheral proteins
interact with integral proteins
Are in the membrane "temporarily"
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