Diffusion (Passive Transport) — Definition & Examples
Read this topicExplanations 4
- Reaching Equilibrium Diffusion is the random motion of particles from areas of high concentration to low concentration, or "down the concentration gradient". When the concentrat…
By Deena Hauze, Alex Federspiel, Mario Janakis, Gabi Slizewska, Jonathan Heller, Caroline K
- What Is Diffusion? Diffusion is a form of passive transport. This means that it requires no energy to occur. It just happens on its own. Although there are a few types of diffus…
By Hannah Bonville, Mario Janakis, Gabi Slizewska
- Explanation #7514
By Sylvia Freeman, Mario Janakis, Gabi Slizewska
- (Video) Passive Transport by Teacher's Pet This video by Teacher's Pet explains how materials can move across a cell membrane without using energy by following the concentration…
By Mario Janakis
Problems 20
- What does it mean for a solution to be at equilibrium?
- What direction do the particles flow across the membrane during diffusion?
- When will diffusion stop?
- In what direction will the small uncharged molecules flow in this diagram?
- Which of the following does NOT increase the rate of diffusion?
- What type of transport is diffusion?
- Which of these best describes an example of diffusion?
- Imagine a drop of Substance A is placed in a liquid solution on one side of a membrane permeable to the molecules of A. Which of the following would NOT occur?
- You pour solid blue particles into a green solution, as shown above. At first, the particles start out close to one another. After a few minutes, thanks to diffusion, what will …
- The purple and yellow solutions are connected so that particles can flow freely between them. What will the solutions look like after some time passes?
- You pour a blue liquid into a yellow liquid. Which of these most likely shows what the new mix of liquids will look like after some time?
- What direction will the blue particles flow in, if the orange barrier is permeable to them?
- Which beaker has the correct concentration written under it? Assume all concentrations are written in grams per milliliter.
- Which tank is at equilibrium?
- Which beaker will have a higher rate of diffusion? Both sides of the membrane in each beaker have the same volume of solvent.
- Which beaker will have the highest rate of diffusion?
- All of the beakers above contain 120 ml of solvent. Which of the beakers shown above will most likely have the highest rate of diffusion when a solute is added?
- Based on the diagram above, which compound would most likely have the highest rate of diffusion when added to a solvent?
- What is the name for the difference between concentrations of a substance across a space?
- When our cells go through cellular respiration, they release carbon dioxide into the blood stream. The carbon dioxide moves from the blood stream to tiny sacs in the lungs so th…