Across
- 2. This type of transport is described as the movement of molecules across a cell membrane from an area of high concentration to an area of low concentration, without the cell expending energy
- 4. This type of transport is described as the movement of molecules across a cell membrane from a lower to a higher concentration, which requires cellular energy, usually in the form of ATP
- 7. the natural movement of particles, such as atoms, ions, or molecules, from an area of higher concentration to an area of lower concentration
- 8. the amount of a substance (solute) present in a specific amount of a solution or mixture.
Down
- 1. A complex three dimensional a structure similar to a cage with many compartments.
- 3. Permeable a membrane allows some molecules or ions to pass through while blocking others
- 5. a thin sheet of tissue or layer of cells acting as a boundary, lining, or partition in an organism.
- 6. A huge molecule made of many repeating units.
- 9. the passive movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration