Cell Transport Flashcards
SHEP stands for
Support, homeostasis, enters, protects
The cell membrane is
Selectively permeable
What are the 3 types of passive transport
Diffusion, facilitated diffusion, osmosis
Diffusion
Random movement of particles until they reach equilibrium
Facilitated diffusion
Diffusion of specific particles through transport proteins
Osmosis
Diffusion of water through a selectively permeable membrane
Passive transport moves
High to low
Which transport needs ATP
Active
Active transport moves
Low to high
3 types of active transport
Protein pumps, endocytosis, exocytosis
Protein pumps and ex
Transport proteins that require energy to function
Ex sodium potassium pumps
Endocytosis
Taking in bulky items which the cell membrane folds around the food particle
Exocytosis and what happens to the cell
Forces material outside the cell in bulk
Cell changes shape
Transport proteins
Specific; select certain molecules across the cell membrane
Transport proteins move
Larger/charged molecules
Hypotonic and word for it
Low solute: high water
Cytolysis
Hypertonic and word for it
High solute: low water
Plasmolysis
Isotonic and word for it
Equal solute: equal water
Dynamic equilibrium
Bacteria and plants prevents and name
Cell wall prevents over expanding
Tugor pressure
Protists
Contractile vacuole collects and pumps out water to prevent over expanding
Salt water fish
Pumps out salt water through specialized gills so they don’t dehydrate
Animal cells
Kidneys keep the blood isotonic by removal of excess salt
What is passive transport affected by
Temperature, pressure, and concentration gradient
