Diffusion osmosis active transport Flashcards
(4 cards)
1
Q
What is diffusion?
A
The movement of molecules from an area of high concentration to a low concentration
2
Q
What is osmosis?
A
The movement of water across a permeable membrane from a high to a low water concentration
3
Q
What is active transport?
A
The movement of molecules or ions across a cell membrane from a lower concentration to a higher concentration
4
Q
What does active transport require?
A
Energy
