B1.8 OSMOSIS IN PLANTS Flashcards
1
Q
when does turgor pressure occur
A
when water enters cell by osmosis causing vaculoes to swell, presses cytoplasm against a cell wall
2
Q
what happens when the outside solution is hypotonic
A
water moves in and keeps cells rigid, supports plant
3
Q
what happens in a hypertonic solution
A
they loose water and become flaccid, plant wilts
4
Q
define plasmolysis
A
plant cells are placed in hypertonic solution. vacuole and cytoplasm shrinks, membrane pulls away from cell wall
