Transport Systems Flashcards
Diffusion if high to low or low to high
Former
What is the difference between active and passive
Passive requires no energy
Diffusion is driven by
Molecules driven by kinetic energy until equilibrium
What are the two ways to diffuse across the membrane
Idissolve phospholipid Byler and pours in right
Is osmosis passive or active
Passive
Osmosis is diffusion of blank across a membrane
Water
Net direction is determined by the relative solute concentrations on
Two sides of membrane
Hypertonic is
Hypotonic is
Isotonic is
Out of cell
Into cell
Both
Cells must
Compensate to remain alive
Humans have the blank system to compensate
Endocrine
Facilitated diffusion
Transport substances down their concentration gradient
A unimportant is
1 molecule type both directions
Symport is
2 molecule types same direction
Anti port is
2 molecule types different directions
Ion channels are passive or active
Passive
Only blank ions can pass in ion channels
Specifics
Are cell membrane pumps active or passive
Active
Cell membrane pumps are low to high true or false
True
Exocytosis is
Vesicles fuse with cell membrane and release contents to external enviro
Endocytpsis is
Endocytosus is cells ingest materials
Pincuotisis is
Vesicles contains fluids
Phagocytosis is
Vesicles contain large particles
