Please enable JavaScript.

Coggle requires JavaScript to display documents.

Mark_Naima_Block4_MM3 (Exocytosis (active transport, through vesicles,…

- - - - enzymatic activity
      - transport
      - signal transduction
      - cell-cell recognition
      - attachment to cytoskeleton and ecm
      - penetrate through hydrophobic core of membrane
    - - stretch of hydrophobic amino acids
  - - - hydrophobic substances
        
        carbon dioxide
        
        oxygen
        
        oils
        
        fats
      - small, uncharged polar molecules
        
        water
        
        alcohol
    - - ions
        
        calcium
        
        potassium
        
        chloride
        
        sodium
      - large, uncharged polar molecules (sugars)
- - - - potassium out
      - sodium in
      - electrical gradient
  - - - Hypotonic
        
        cells swell, burst
        
        lower concentration
      - Isotonic
        
        no change
        
        equal solute to water ratio
      - Hypertonic
        
        shriveled cells
        
        higher concentration
      - Osmoregulation
        
        maintains constant osmotic pressure
        
        controls water and salt concentrations
      - aquaporins
    - - through phospholipid bilayer
      - happens to small, nonpolar particles
    - - special membrane channels
      - uses carrier proteins
      - through the transport protein
      - happens to large or polar particles