osmosis/water potential (2.1.5e)

Question 1

osmosis

Answer 1

the movement of water molecules from high concentration (high water potential) to that of low concentration (low water potential), across a partially permeable membrane.

Question 2

water potential

Answer 2

pressure created by water molecules when they collide with a membrane or container.

Question 3

hydrostatic pressure

Answer 3

the pressure created by water in an enclosed system.

Question 4

solute

Answer 4

a substance that will dissolve into a liquid.

Question 5

solution

Answer 5

made of a solute and a solvent.

Question 6

concentration

Answer 6

the measure of the amount of a subcomponent within a solution.

Question 7

cytolysis

Answer 7

the bursting of an animal cell caused by increasing hydrostatic pressure as water enters by osmosis.

Question 8

crenation

Answer 8

occurs when an animal cell is sensitive to a hypertonic solution; cell shrinks due to movement of water out.

Question 9

turgor

Answer 9

the pressure exerted by the cell surface membrane against the cell wall in a plant cell.

Question 10

turgid

Answer 10

when a plant intakes excess water.

Question 11

plasmolysed

Answer 11

when the protoplasm (internal contents) of a plant cell contracts/drinks due to the loss of water in a cell.

Question 12

protoplast

Answer 12

isolated cells produced by removing the surrounding cell walls.