Cell Transport

molecule that forms a double-layered cell membrane; consists of a glycerol, a phosphate group, and two fatty acids

• receptor

• protein pump

• phospholipid

• osmosis

release of substances out a cell by the fusion of a vesicle with the membrane; exo = out; nerve cells do this

• exocytosis

• enodocytosis

• plasmolysis

• turgor pressure

model that describes the arrangement and movement of the molecules that make up a cell membrane; besides phospholipids the cell membrane has other molecules that are in constant motion

• dynamic equilibrium

• fluid mosaic

• active transport

• passive transport

uptake of a solid particle into a cell by engulfing the particle in a vesicle; "eat" ; white blood cells do this to proteins

• cytolysis

• plasmolysis

• diffusion

• phagocytosis

protein that detects a signal molecule and performs an action in response; on the cell membrane and binds with certain molecules to help with cell's communication

• receptor

• protein pump

• osmosis

• hypertonic

(adenosine triphosphate) main energy source that cells use for most of their work; molecule that the cell uses for energy

• active transport

• transport protein

• ATP

• receptor

movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration

• dynamic equilibrium

• facilitated diffusion

• diffusion

• osmosis

protein that moves substances or wastes through the plasma membrane; helps large molecules or ions move through cell membrane

• protein pump

• transport protein

• phospholipid bilayer

• ATP

Result of diffusion where there is continuous movement of particles but no overall change in concentration; ;things still move across the membrane but in equal amounts

• dynamic equilibrium

• hypotonic

• selectively permeable

• concentration gradient

The rupturing of a cell due to excess internal pressure; cells in a hypotonic solution will take in too much water and burst

• hypertonic

• pinocytosis

• turgor pressure

• cytoloysis