⛰️⚽️⬇️

#passive transport #analogy #downhill #concentration gradient #potential energy #no energy required #spontaneous movement

💧〰️|

#passive transport #osmosis #water movement #diffusion of water #cell membrane #semipermeable membrane

⬇️|➡️🚫⚡️

#passive transport #concentration gradient #downhill movement #cell membrane #across membrane #molecular movement

⚽️🚪➡️🚫⚡️

#passive transport #facilitated diffusion #channel protein #carrier protein #membrane transport #cell membrane

🧱🧱🧱➡️|🧱

#passive transport #simple diffusion #concentration gradient #high concentration #low concentration #cell membrane #molecular passage

⭕↔🔑

#selective permeability #membrane transport #cell boundary #channel protein #ion channel #active transport #passive transport