Cell Transport: Passive Transport Flashcards
What is the movement of substances in and out of a cell throuh the cell membrane?
Cell transport
What type of cell transport does not require energy?
Passive transport
Instead, passive transport relies on what?
Kinetic energy & the concentration gradient of molecules (or molecular movement)
What are the three types of Passive Transport?
Simple diffusion, facilitated diffusion, osmosis
From what region do molecules/ions/particles move from? Where do they move next?
Region of greater concentration to a region of lower concentration
Unlike the other types of passive transport, multiple types of substances utilize simple diffusion. Name one.
Fats, oxygen, carbon dioxide, certain ions
Facilitated diffusion is like a partnership. What helps the diffusion occur in the membrane?
Transport proteins called transport channels
Osmosis is the movement of only a specific molecule. What molecule is this?
Water molecules