movement in/out of cells 🦢

Question 1

define diffusion

Answer 1

movement of particles from an area of HIGH to LOW concentration (random movement).

particles gain equilibrium across the membrane (equal concentrations).

Question 2

define osmosis

Answer 2

net movement of water particles from area of HIGH to LOW water potential/concentration, across a partially permeable membrane.

Question 3

define active transport

Answer 3

movement of particles against a conc gradient from an area of LOW to HIGH conc using ATP energy released in respiration.

Question 4

what water potential will a dilute/concentrated solution have?

Answer 4

dilute solution = high water conc/potential.
concentrated solution = low water conc/potential