Movement into and out of cells Definitions

Question 1

Diffusion

Answer 1

the net movement of particles from a region of higher concentration to a region of lower concentration(down a concentration gradient)

Question 2

Osmosis

Answer 2

the net movement of water molecules from a region of higher water potential to a region of lower water potential through a partially permeable membrane

Question 3

Active transport

Answer 3

the movement of particles through a cell membrane from a region of lower concentration to a region of higher concentration(against a concentration gradient) using energy from respiration

Question 4

Turgid cell

Answer 4

a cell swollen from water uptake(the cytoplasm and vacuole are full of water)

Question 5

Flaccid cell

Answer 5

a cell with not enough water(cell has lost H₂O, cell membrane detaches from cell wall, cytoplasm and vacuole shrink)

Question 6

Plasmolysed

Answer 6

referring to a more extreme version of a flaccid cell

Question 7

Turgor pressure

Answer 7

the pressure that is exerted by the fluid(water) on the wall of the cell