A. Microscope use
B. Microscopic measurement
C. Cell theory
D. Prokaryotic cells
E. Eukaryotic cells
VII. CELL MEMBRANES
A. Surface to volume ratio
B. Fluid Mosaic Model of membrane structure
C. Selective permeability and transport
VIII. OSMOSIS AND DIFFUSION
A. Cellular homeostasis
B. Diffusion and factors affecting its rate
E. Exocytosis, phagocytosis, pinocytosis
IX. CELL ORGANELLES
A. Structure and function of cell organelles
B. Compare plant and animal ce…
Terms in this set (...)
Movement of MOLECULES from area of high concentration to an area of low concentration. (small molecules move this way)
Diffusion of WATER through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal.
Concentration of solutes outside the cell is higher than the concentration inside the cell, water will move out of the cell
Concentration of solutes outside the cell is lower than the concentration inside the cell, water will move into the cell
Concentration of solutes outside the cell equals the concentration inside the cell
Use of carrier PROTEINS for diffusion, does not require energy for a molecule to travel across the membrane Moves molecules from high to low solute concentration
When energy is used to transport molecules across the membrane against the concentration gradient Uses ATP Moves molecules from low to high solute concentration Use of protein
molecules move with the concentration gradient from high to low concentration NO energy required.
Types of Passive Transport
Diffusion, Osmosis and Facilitated Diffusion
Types of Active Transport
Endocytosis (phagocytosis and pinocytosis) Exocytosis, and Protein Pumps
Active transport process where a cell engulfs materials with a portion of the cell's plasma membrane and releases the contents inside of the cell.
Expulsion or secretion of materials from a cell.
A type of endocytosis in which the cell "drinks" droplets of fluid into tiny vesicles.
"Cell eating"; an active transport process where a cell engulfs solids