Cell Transport – notes

The Cell Membrane / ______what enters and leaves the cell
______structure and support
Most cell membranes are made of a double layered sheet called a phospholipid bilayer.
A semi permeable membrane means that some substance can pass across the membrane and others cannot. The ______is a semi-permeable membrane

Solutions / A ______is a liquid mixture of two or more substances that are evenly mixed.
The dissolved substance is called the ______
A ______dissolves a solute
Solvent + Solute = Solution
Examples: Salt water, sugar water,

The Cell does not Use Energy in Passive Transport!
2 types of Passive Transport:
1.  Diffusion
2.  Osmosis
/ ______: Transport across the cell membrane that does not require energy.
______is the tendency of molecules to move from an area of high concentration to an area of low concentration.

When the concentration of a solute is the same through out a solution, the system has met ______.
______is the diffusion of ______through a selectively permeable membrane.

Hypotonic: The solution has a ______concentration of water than the concentration of water inside the cell therefore water will ______the cell and the cell increases in size.
Isotonic: The solution has an ______concentration compared to the inside of the cell therefore no water would move in or out and the cell would remain the ______size and shape.
Hypertonic: The solution the cell is in is ______concentrated than the concentration of the water inside the cell therefore water would ______the cell and the cell would shrink

The Cell Uses Energy in Active Transport!
Two Types of Active Transport:
1.  Endocytosis
2.  Exocytosis / Active Transport - Material moves from an area of ______concentration to an area of ______concentration in a process called active transport.
______is the movement across the cell membrane that requires energy in the form of ATP.
______- the process of taking in material into the cell by means of infoldings, or pockets, of the cell membrane.
______- is the removal of large amounts of material from the cell by vesicles.