Biology Questions
Osmosis
The diffusion of water across a selectively permeable membrane
Diffusion
The movement of particles from an area of higher concentration to an area of lower concentration.
Endocytosis
The process by which a cell surrounds and takes in material from its environment.
Brownian motion
The random movement of particles.
Dynamic equilibrium
In a cell, water always moves to reach an equal concentration on both sides of the membrane.
Pinocytosis
Cell drinking
Hypertonic Solution
A high solute concentration outside of the cell.
Hypotonic Solution
A low solute concentration outside of the cell.
Phagocytosis
Cell eating
Isotonic solution (Equal concentration)
Water molecules move in and out of the cell at the same rate, and cells retain their normal shape.
Passive Transport
When a cell uses no energy to move particles across a membrane
Active Transport
Movement of materials through a membrane against a concentration gradient and requires energy from the cell.
Exocytosis
It is the removal or secretion of materials from a cell.