Movement into and out of cells: Flashcards
What is diffusion?
movement of particles from an area where they are more concentrated to an area where they are less concentrated
Where does the energy for diffusion come from?
from the kinetic energy of particles, which move randomly due to thermal energy.
How do substances move into and out of the cell by diffusion?
How important is diffusion to living organisms?
allows substances like oxygen, carbon dioxide, and nutrients to move in and out of cells without using energy
What effects do surface area, temperature, concentration gradient and distance have on diffusion?
What is osmosis?
What is active transport?
What is the role of water in living organisms?
How does water move into and out of cells by osmosis?
Membrane Permeability:
Concentration Gradient:
