How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
Vocab Biology 3.4
the movement of molecules across a cell membrane without energy input from a cell
the movement of molecules in a fluid or gas from a region of higher concentration to a region of lower concentration
When water molecules diffuse
when a cell has the same concentration of dissolved particles
a solution that has a higher concentration of dissolved particles than a cell
a solution that has a lower concentration of dissolved particles than a cell
the diffusion of molecules across a membrane through transport proteins