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Unit 3

When one substance is fully dissolved in a another, the resulting mixture is called a ___ solution
The substance being dissolved in another is a __ solute
A liquid that dissolves another substance is a __ solvent
Spreading of molecules (due to their movement) from areas of greater concentration (HIGH) to areas of lesser concentration (LOW) is __ diffusion
the diffusion of water across a membrane is __ osmosis
What happens to a cell in freshwater? it swells
What (generally) happens to a cell in saltwater? it shrinks
What (specifically) happens to a PLANT cell in saltwater? the water leaves the cells, emptying the vacuole, causing the cell membrane pulls away from the cell wall and to shrink in, scrunching up all of the other organelles.
Which protist was green, tiny, and had a whip-like tail? Euglena
Which protist was oval-shaped, and had cilia all over (hairs) to move ? Paramecium
Which protist is "blob-like" and flows its cytoplasm to make pseudopodia (false feet)? Amoeba
What structure in a protist squirts out water from the cell? the contractile vacuole
Why does the contractile vacuole squirt out water? Protists live in freshwater, and so water enters them by osmosis. Squirting out the extra water keeps them from swelling and bursting.
Created by: doakes27