Structure & functions of biological membranes презентация

STUDY OF BIOLOGICAL MEMBRANES
х54000
PHOSPHOLIPID

Lipid monolayer
Lipid bilayer
Hydrophilic group
Hydrophobic group
Hydrophilic group

Липид
LIQUID MOSAIC MODEL OF BIO MEMBRANE
Singer & Nikolson, 1972

MODEL MEMBRANE. LIPOSOME

SELFCONSTRUCTION OF PHOSPHOLIPIDS

BIMOLECULAR LIPID MEMBRANES

PHOSPHOLIPID MOLECULES MOTION
THERMAL EFFECT
rotation
Lateral diffusion
T=10-7-10-8s
Diffusion
Flip-flop

Flip-flop

BIOMEMBRANE FUNCTIONS

BIOMEMBRANE FUNCTIONS

BILIPID LAYER PENETRABILITY
GASES
HYDROPHOBIC MOLECULES
SMALL
MOLECULES
BIG
MPLECULES
IONS

MEMBRANE PROTEINS
KINDS OF PROTEINS
INTEGRAL
PERIPHERAL

MEMBRANE PROTEINS

MEMBRANE PROTEINS FUNCTIONS
й
TRANSPORT
Passive
transport;
b) Active
transport

TRANSPORT FUNCTION

MEMBRANE TRANSPORT FUNCTION
PASSIVE TRANSPORT
ACTIVE TRANSPORT

PASSIVE TRANSPORT
Osmosis
Simple diffusion
Facilitated diffusion
Filtration
Through lipid bilayer
Through lipid bilayer
pores
Through protein pores
Fixed carrier
Nonfixed
carrier

ACTIVE TRANSPORT
ION PUMPS
SECONDARY ION TRANSPORT
ENDOCYTOSIS
EXOCYTOSIS

ION PUMPS
K+-Na+ pump
H+ or proton pump
Ca2+ pump

Secondaryactive transport

ENDO- & EXOCYTOSIS
FAGOCYTOSIS
PINOCYTOSIS
ENDOCYTOSIS KINDS

ENDOCYTOSIS