ONE SIGNAL - MANY EFFECTS
MANY SIGNALS - ONE EFFECT
MESSENGER CASCADE
SAME HORMONE MAY HAVE
DISTINCT EFFECTS IN DIFFERENT
TISSUES OR CELL TYPES

,
EFFECTS ON CELL FUNCTION MAY ONLY
OCCUR IF CORRECT COMBINATION OF HORMONES ACT SIMULTANEOUSLY ON SAME CELL
TRANSDUCER
COMPLEX
 TRANSCRIPTION
PERMEABILITY
PERMEABILITY
 TRANSCRIPTION