• Home
  • Chemistry
  • Astronomy
  • Energy
  • Nature
  • Biology
  • Physics
  • Electronics
  • Electron Carriers in Cellular Respiration: NAD+, FAD, and CoQ
    The molecules that serve as intermediate electron carriers in cellular respiration are:

    1. NAD+ (Nicotinamide adenine dinucleotide)

    * Reduced form: NADH

    * Function: Carries electrons from glycolysis and the Krebs cycle to the electron transport chain.

    2. FAD (Flavin adenine dinucleotide)

    * Reduced form: FADH2

    * Function: Carries electrons from the Krebs cycle to the electron transport chain.

    3. Ubiquinone (Coenzyme Q)

    * Reduced form: Ubiquinol

    * Function: A mobile electron carrier within the electron transport chain, shuttling electrons between protein complexes.

    4. Cytochromes

    * Reduced form: Fe2+ (ferrous)

    * Function: A group of proteins containing heme, which is an iron-containing molecule that accepts and donates electrons. They are involved in the electron transport chain.

    These electron carriers play a crucial role in cellular respiration by transferring electrons from one molecule to another, ultimately powering the generation of ATP through oxidative phosphorylation.

    Science Discoveries © www.scienceaq.com