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The cell membrane helps to maintain homeostasis by ...

• regulating what enters and leaves the cell.

• fighting foreign substances that enter the cell.

• providing a rigid support system for the cell.

• assisting the cell in movement

When solutes diffuse, they move ....

• from low concentration to high concentration

• from high concentration to low concentration

• "up" the concentration gradient

• randomly

Osmosis is strictly about ....

• the movement of solutes

• the movement of solutes across a membrane

• the movement of gases

• the movement of water across a membrane

Once the particles in a solution hit equilibrium, they ....

• quit moving

• move back in the same direction they came from

• continue to move in the direction they were going

• continue to move but in no particular direction

All organisms and their cells adjust internally to changing external conditions to maintain h__eo_t_s_s. 

What is the diffusion of water only across a cell or semi-permeable membrane?

• Osmosis
• Diffusion
• Active Transport
• Passive Transport

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Where will the water go?

• Into the cell
• Out of the cell
• Equally in & out - it's isotonic
• There is no water

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport