Movements Of transport Flashcards
(6 cards)
0
Q
Endo and exocytosis
A
Bulk transport of materials via vesicles that's can fuse or break from the cell surface membrane. ATP's used to move the membranes to form vesicles. Phago- solids Pino-liquids Endo-in Exo-out
1
Q
Facts on active transport
A
Not passive uses ATP Molecules or ions CARRIER PROTEINS USED. Change shape For large or charged molecules Against concentration gradient Faster than diffusion
2
Q
Osmosis facts
A
Water potential in kPA
animal cells burst, plant don’t be aside of cell wall (turgid)
Down a water potential gradient, from high w.p to low w.p.
movement of water molecules across a partially permeable membrane
3
Q
Normal Diffusion facts
A
Uses KINETIC energy Down concentration gradient No net movement means equilibrium SMALL GASES O2 and CO2 and LIPID BASED MOLECULES CAN DEFUSE THROUGH PHOSPHOLIPIDS
4
Q
Facilitated diffusion facts
A
Uses either channel or carrier proteins Kinetic energy Down concentration gradient CHANNEL: ions like sodium ions and calcium ions Form pores in the membrane- gated and specific CARRIER- large molecules eg;glucose Change shape Specific
5
Q
Thinks which affect diffusion
A
Temp Stirring Concentration gradient Thickness of membrane Size of molecule Surface area
