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Cell Transport II

Across
Cell structure that carries substances
When comparing two solutions, the one with the lower substance concentration
The movement of molecules without energy (2 words)
Allowing some molecules to pass into the membrane, while keeping others outside the membrane
A range in substance concentration over an area
Cell structure surrounding the cytoplasm (2 words)
In active transport, substances move ____ a concentration gradient.
Movement of water molecules across a membrane
When comparing two solutions, the one with the higher substance concentration
A substance is engulfed and brought into the cell
Down
A substances is moved out of the cell
Movement of molecules through a membrane protein, without energy (2 words)
The energy molecule involved in active transport
Movement of molecules requiring energy (ATP) (2 words)
A white blood cell engulfs a pathogen
Two solutions that have the same substance concentration
Movement of molecules from a high concentration to a lower concentration