The Cell: Part 5: Passive Transport Flashcards
What is a solvent?
The substance that dissolves the solute.
What is Hypertonic?
Having a greater concentration of a solute than another solution.
What is Isotonic?
Having a equal concentration of a solute than another solution.
What is Hypotonic?
Having a lower concentration of a solute than another solution.
What is passive transport?
It is the movement of molecules down a concentration gradient from a region of higher concentration to lower concentration.
What are the two ways passive transport occurs?
It occurs by Diffusion or Osmosis.
Does Passive Transport require energy?
No, it does not require energy.
What are the two types of diffusion?
Simple diffusion and Facilitated diffusion.
What is Simple Diffusion?
The movement of particles from a higher concentration to a lower concentration. The steeper, the faster.
Does Facilitated Diffusion require energy?
No, it does not require energy.
What does Facilitated Diffusion rely on?
They rely on special protein membrane channels.
What is Osmosis?
It is the movement of water across the membrane.
In Osmosis, water flows down a gradient toward a region with
High solute concentration.
Water diffuses toward the _______ area
Hypertonic.
What is plasmolysis?
Cell shrinking is called plasmolysis.
