Download Passive and Active Transport Practice—8

Passive and Active Transport Practice—8.1
1. What would happen to an animal cell if you placed it in a solution with more salt on the
outside than on the inside? Draw what it would look like.
2. What would happen to an animal cell if you place it in a solution with more salt on the
inside than the outside? Draw what it would look like.
3. What would happen to a plant cell if you placed it in a solution with more salt on the
outside than the inside? Draw what it would look like.
4. What would happen to an plant cell if you place it in a solution with more salt on the
inside than the outside? Draw what it would look like.
5. In terms of osmosis, why does a slug shrivel up when you pour salt on it?
6. When you forget to water a plant what happens to it? What has happened to each of the
cells?
7. Explain why marine organisms cannot survive in Salem Lake (fresh water).
8. Why does a high salt diet make people retain water in their bodies?
9. Jelly beans have an extremely high solute concentration. Why does this explain why they
very rarely “rot” from a bacteria infection?
Membrane Transport
Purpose—to gain a working knowledge of the various processes of membrane transport by
drawing cartoons that depict the process of membrane transport.
Instructions-draw a cartoon for each of the five processes below. The cartoon should
demonstrate the process. An example might be drawing a cartoon showing a football team
leaving the huddle for the process of diffusion.
Osmosis—movement of water particles from an area of high concentration to an area of low
concentration through a selectively permeable membrane.
Facilitated diffusion—movement of materials across a membrane from an area of high
concentration to an area of low concentration using a carrier (transport) protein.
Active transport—movement of materials across a membrane from an area of low
concentration to an area of high concentration using a carrier (transport) protein.
Gated channeling—movement of materials across a membrane using a channel protein (as a
tunnel).
Endocytosis—a process in which a cell surrounds and takes in materials from its environment
without that material actually passing through the membrane.