Transport of mineral ions Flashcards
What is the definition of diffusion?
The net movement of particles from an area of higher concentration to an area of lower concentration
What is the meaning of net movement?
The movement of all particles as a group
Where can diffusion happen?
In gasses and liquids
What does ‘partially permeable’ mean?
Only some particles are able to diffuse through
What does ‘passive process’ mean?
Doesn’t require any energy from the cell
What is the definition of osmosis?
Osmosis is the net movement of water molecules across a partially permeable membrane, from a region of higher water concentration, to a region of lower concentration
What is the definition of active transport?
The movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy
