What Molecules Use Active Transport

This paper focuses on the ABC (ATP-Binding Cassette) superfamily, which is one of the largest families of active transporters.

Proton pumps actively move H⁺ across membranes. Examples include: what molecules use active transport

The mechanism used depends on whether the energy is applied directly to the molecule or harvested from a pre-existing gradient. Molecule Category Primary Active Transport Secondary Active Transport Bulk Transport Cl−cap C l raised to the negative power (sometimes) Nutrients Glucose, Amino Acids Large Sugars Large Solids/Liquids Bacteria, Proteins This paper focuses on the ABC (ATP-Binding Cassette)

Large signaling proteins or structural components are moved out of the cell via exocytosis . what molecules use active transport

Cells often need to "pull in" nutrients even when they are already more concentrated inside the cell than in the external environment.

Based on these papers, molecules that use active transport generally fall into these categories: