Midterm 3 Flashcards
solutepumping
requiresaproteincarrierthat
combinewithsubstancesthatneedtocross
Plasma membrane
Selectivelypermeable
phospholipidbilayer
integralproteins
Passivetransport
whensubstancesare
transportedacrossthemembranewithoutenergy
involved
diffusion
processwheremoleculesspread
themselvesthoughoutavailablespace;dueto
kineticenergy
osmosis
simple diffusion of water
filtration
processwherewaterandsolutesare
forcesthroughamembranebyhydrostaticpressure
exertedbyblood
Active transport
processwhereacelluses
energytomovesubstancesacrossmembrane
neededif:
moleculeistoolarge
moleculescan’tdissolveinhydrophobicarea
moleculesneedtomoveagainstconcentration
gradient
Exocytosis
movessubstancesoutofcell
smallmembraneboundvesiclefuseswith
plasmamembraneandexpellscontents
outsidecell
Endocytosis
movessubstancesintocell
phagocytosis
engulfing
pinocytosis
“celldrinking”
4 types of tissue
Epithelium(covering)
Connective(support)
Muscle(movement)
Nervous(control)
Epithelium tissue
basement membrane and apical surface
usually over top of connective
connective tissue
extracellular matrix