cell membrane and transport Flashcards
all fluids referred to inside of a cell
cytoplasm
membrane that allows a molecule to pass through
permeable
plasma membranes are
semipermeable
fluids that surround the cell
extracellular fluid
membrane that does not allow molecules to pass through
impermeable
active process moves things from
low to high concentration
passive process moves things from
low to high concentration
solution with more solute and less water
hypertonic
solution with more water and less solute
hypotonic
a pump is what kind of molecule
protein
where is the pump located
plasma membrane
two types of endocytosis
phago (to eat) and pino (to drink)
large waste products are released from the cell
exocytosis
diffusion of water molecules
osmosis
a state reached when particles move in equal amounts around the cell
dynamic equilibrium
large particles surrounded and brought into the cell
endcytosis
structure responsible for maintaining cell homeostasis
plasma membrane
plasma membrane is made up of a
phospholipid bilayer
diffusion continues until
equilibrium is reached
if a cell is placed in salt water, water leaves the cell due to
osmosis
of a cells mitochondria was destroyed, what transport processes would survive
osmosis, diffusion, facilitated diffusion
hypertonic
cell would shrink, water molecules leave
hypotonic
cells would swell/burst, water molecules would enter
isotonic
cell would stay the same, water molecules would move equally
a plant deprived of water will wilt (plasmolysis) because of loss in
turgor pressure
when a hospital patient is given IV fluids, what tonicity should those fluids be
isotonic to the normal concentration of a healthy person
