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Cell signaling (second messenger (ex.) cAMP (activated from G protein), ex…

- - - - DAG
        
        2 fatty acid tails 1 molecule of glycerol
      - IP3
        
        hydrophilic
- - - - responds to light, sound electric charge, más
      - Na+, K+, Ca2+,Cl-
    - - phosphorylates a protein with ATP
      - protein kinase cascade
        
        encourages growth factors
        
        a chemical signal that encourages cells to divide
        
        1.) epinephrine stimulates cascade
        
        2.) Protein Kinase A is activated by cAMP
        
        3.) Protein Kinase A phosphorylates glycogen synthase
        
        inactivated when a phosphate group is added
        
        yellow squares
        
        4.) AND Protein Kinase A phosphorylates phosphorylase kinase
        
        activated when phosphate group is added
        
        activation of glycogen phosphate
        
        breaks down glycogen into glucose molecules
    - - responds to light detection, odor, regulation of mood
      - ligand binds and G protein binding is the is exposed of the cytoplasmic side
        
        initiates a signal transduction pathway