What do all organisms need to get rid of in order to live?
What is wastes
During this, water molecules move from higher to lower concentration across a membrane
What is osmosis
Through what do materials go in and out of an organism's cells?
What is cell membranes
Water moves through this in osmosis
What is cell membrane
A sodium "pump" that uses energy is ________ transport.
What is an example of active transport?
How do particles move from areas of lower concentration to areas of higher concentration?
What is by active transport
When a potato is put into salt water what happens to the potato?
The potato shrinks
The organelle that causes "turgor pressure" against the cell wall of a plant.
What is a Large Central vacuole?
Molecules that are too large to be moved through the cell membrane can be transported into the cell by
What is endocytosis OR Facilitative Diffusion
List the independent variable and the dependent variable for the potato lab.
Lab: Cut a potato into strips and put varying amounts of salt on the strips of potato.
IV: Amount of Salt DV: Mass of potato