Skip to main content
Back

Membrane Transport 2 definitions

Control buttons has been changed to "navigation" mode.
1/12
  • Primary Active Transport
    Directly utilizes energy to move substances across membranes, establishing gradients essential for cellular function.
  • Secondary Active Transport
    Harnesses the electrochemical gradient of one substance to drive another substance against its own gradient.
  • Electrochemical Gradient
    Combination of concentration and electrical differences across a membrane, providing potential energy for transport.
  • Proton Pump
    Membrane protein that moves protons to create a gradient, resulting in high and low concentrations on opposite sides.
  • Chemical Gradient
    Difference in solute concentration across a membrane, forming a basis for energy storage and transport.
  • ATP Synthase
    Enzyme that utilizes the energy from protons moving down their gradient to synthesize ATP in cells.
  • Uniporter
    Transport protein moving a single solute in one direction, often using an electrical gradient for movement.
  • Symporter
    Transporter moving two solutes simultaneously in the same direction, with one moving against and one down its gradient.
  • Antiporter
    Transporter moving two solutes in opposite directions, with one moving against and one down its gradient.
  • Cotransport
    Mechanism involving simultaneous movement of multiple solutes, typically via symporters or antiporters.
  • Concentration Gradient
    Difference in solute concentration across a membrane, driving passive and active transport processes.
  • Electrical Gradient
    Difference in charge across a membrane, contributing to the movement of ions and other charged molecules.