active transport Flashcards
primary active transport
Use of active transport pumps to move ions across membranes
secondary active transport
Uses the concentration gradient of an ion, created by the 1st pump, as its energy source
symport
a solute moves through the membrane channel
in same direction as driving ion
antiport
driving ions move through membrane in one direction, providing energy for active transport of another solute in the opposite direction
what is exocytosis
large molecules held within the cell are transported to the external environment (exit)
what are different types of endocytosis
pinocytosis and phagocytosis
pinocytosis
cells engulf extracellular water and any other molecules in the solution
phagocytosis
cells engulf solid particles/ bacteria