phospholipid bilayer/fluid mosaic model
- Created by: sarahbrennan98
- Created on: 10-04-15 21:55
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- The Plasma Membrane
- phospholipid bilayer
- hydrophobic tails
- 'water hating'
- hydrophilic head
- 'water loving'
- hydrophobic tails
- Intrinsic protein
- these allow larger molecules to pass through the membrane
- extrinsic protein
- usually attach to proteins to create glycoprotein
- glycoprotein
- these are receptors for the cells
- glycoprotein
- usually attach to proteins to create glycoprotein
- glycoprotein
- these are receptors for the cells
- Carbohydrate Branch
- these bond with lipids and proteins to create receptor molecules
- Glycolipid
- act as receptor molecules
- Fluid Mosaic Model
- a double bilayer that contains moving phospholipids, proteins and carbohydrate
- triglycerides
- a glycerol molecule bonded with 3 fatty acid tails
- they bond using condensation reactions to form ester bonds
- a glycerol molecule bonded with 3 fatty acid tails
- Emulsion test
- add ethanol to substance, shake and add to water
- if lipids are present solution goes milky colour
- add ethanol to substance, shake and add to water
- phospholipids
- made of 2 fatty acids, 1 glycerol and a phosphate molecule
- tails repel water and the head attracts water causing proteins channels when the phospholipids curl up
- made of 2 fatty acids, 1 glycerol and a phosphate molecule
- diffusion is the net movement of particles from a high to low concentration, this is how substances are exchanged
- larger surface area means faster diffusion
- higher concentration gradient increases diffusion rate
- thinner exchange surface increases the rate of diffusion
- osmosis is the net movement of particles from a high water potential to a low one
- uses partially permeable membrane
- facilitated diffusion
- carrier proteins
- a large molecule that cant diffuse over the membrane used carrier proteins
- Untitled
- a large molecule that cant diffuse over the membrane used carrier proteins
- protein channels
- allows charged particles to pass over the membrane
- carrier proteins
- phospholipid bilayer
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