6 Questions
Which type of diffusion allows water-soluble compounds and ions to cross the plasma membrane?
Channel-mediated diffusion
What is the net movement of a substance from an area of higher concentration to an area of lower concentration called?
Diffusion
In an isotonic saline solution, what happens to the size and shape of red blood cells?
They appear normal in size and shape
What type of solution has a lower solute concentration than the cell?
Hypotonic
What type of solution has a higher solute concentration than the cell?
Hypertonic
Which type of diffusion allows the passage of $O_2$ and $CO_2$ across the plasma membrane?
Simple diffusion
Test your knowledge on the process of simple and channel-mediated diffusion across the plasma membrane. Learn about the movement of various molecules and ions based on factors like size, charge, and interaction with channel walls.
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