Molecules and Membrane
Osmosis - movement of water across a cell membrane (high to low concentration)
Passive Transport- does not require energy
Active Transport- uses energy to move solutes against their gradients (low to high concentration)
Exocytosis- large units leaving the cell phagcytosis- "cell eating", solid comes into a cell
Endocytosis- large molecules coming in the cell. pinocytosis- "cell drinking" when liquid comes into cell
Passive Transport- does not require energy
Active Transport- uses energy to move solutes against their gradients (low to high concentration)
Exocytosis- large units leaving the cell phagcytosis- "cell eating", solid comes into a cell
Endocytosis- large molecules coming in the cell. pinocytosis- "cell drinking" when liquid comes into cell
Tonicity can either be Hypertonic- water leaves the cell, cell shrinks (plasmolysis), Isotonic- water outside and inside is at equilibrium or Hypotonic- water goes into cell, cell begins to overflow
CELL MEMBRANE
Additional diagrams and pictures
Class Assignments
These are the chapter tests we took to demonstrate our knowledge of the unit. We were tested on our knowledge on basic information on cell membranes and the components of the cell membranes.