Vesicle transport requires energy, so it is also a form of active transport, and active transport requires a carrier molecule and a form of energy. Given these facts, vesicle transport requires energy and a what among the following options:
- activity
 - major threat to health
 - metabolic reaction
 - hydration
 - biofuel
 - wavelengths and photons
 - carrier molecule
 - Vibrations.


 

       carrier molecule  