Passive Transport Flashcards
Cells use no energy for _____ transport.
passive
In passive transport molecules move _______
randomly
Molecules spread how from a ____ concentration to ____ concentration.
High to low
Simple Diffusion
High concentration to low concentration
Facilitated Diffusion
Diffusion with help of transport proteins. Riding a protein bicycle.
Osmosis
Diffusion of water - ride the water slide down from high concentration to low concentration -
What is the RANDOM movement of particles from high concentration to low concentration?
Diffusion
How long does diffusion continue?
Until all molecules are evenly spaced
When all molecules are evenly spaced is called ___
equialibrium
Will molecules still move after reaching equilibrium?
Yes, they still move but stay spread out.
Facilitated Diffusion requires what:
Protein (Carrier, Transport or Carrier)
Diffusion moves through the ______
Lipid Bilayer
Will all molecules cross the membrane with a carrier protein?
No
Are carrier or transport proteins large or small?
large
What is a solute particle?
Any molecule the dissolves into a liquid.
Describe Hypotonic Solution:
Low Solute / High Water
What is is called when water moves from the solution into the cell and the cells swells and bursts?
Cytolysis
Describe Hypertonic Solution:
High Solute / Low Water
What is is called when water moves from inside the cell into the solution and the cell shrinks?
Plasmolysis
Describe Isotonic Solution:
Same Water and Solute
What is it called when water moves equally in both directions?
Dynamic Equilibrium
