| Term | Definition |
|---|
| osmosis | the movement of water molecules from an area of high concentration to low concentration |
| solute | the substance dissolved in a liquid |
| hypertonic solution | contains a high level of concentration relative to the cell |
| hypotonic solution | contains a low level of concentration relative to the cell |
| isotonic solution | contains the same concentration of solute relative to the cell |
| solution | A homogeneous mixture of two or more substances |
| homogeneous | Uniform in structure or composition throughout |
| semipermeable membrane | A membrane that will let some substances through, but not others |
| lyse | the death of a cell by bursting |
| phospholipid bilayer | A two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward. |
| diffusion | the movement of molecules from an area of higher concentration to an area of lower concentration |
| homeostasis | the maintenance of stable internal conditions despite changes in the surroundings |
| hydrophobic | repels water |
| hydrophyllic | water loving phosphate head |
| solvent | a substance that dissolves another substance |
| wilting | results from loss of water and loss of pressure in the plants cells. |
| turgor pressure | the pressure that water molecules exert against the cell wall. |
| elodea | Aquatic plant with translucent (see-through) leaves that grows in fresh water ponds |
| passive transport | The movement of materials through a cell membrane without using energy |
| active transport | movement of molecules across a membrane requiring energy to be expended by the cell |
| function of cell membrane | controls what enters and leaves the cell |
Combine with other sets
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