chemiosmosis

(noun)

The movement of ions across a selectively permeable membrane, down their electrochemical gradient.

Related Terms

Examples of chemiosmosis in the following topics:

  • Chemiosmosis and Oxidative Phosphorylation

    • Chemiosmosis is the movement of ions across a selectively permeable membrane, down their electrochemical gradient.
    • During chemiosmosis, electron carriers like NADH and FADH donate electrons to the electron transport chain.
    • Chemiosmosis is used to generate 90 percent of the ATP made during aerobic glucose catabolism.
    • The production of ATP using the process of chemiosmosis in mitochondria is called oxidative phosphorylation.
    • Describe how the energy obtained from the electron transport chain powers chemiosmosis and discuss the role of hydrogen ions in the synthesis of ATP

  • Electron Transport Chain

    • The removal of the hydrogen ions from the system also contributes to the ion gradient used in the process of chemiosmosis.

  • Processes of the Light-Dependent Reactions

    • This flow of hydrogen ions through ATP synthase is called chemiosmosis because the ions move from an area of high to an area of low concentration through a semi-permeable structure.