However, the brightness of a star depends on its composition and how far it is from the planet. Astronomers define star brightness in terms of apparent magnitude â how bright the star appears from Earth â and absolute magnitude â how bright the star appears at a standard distance of 32.6 light-years, or 10 parsecs.
What is the electron transport chain? A: The electron transport chain is a chemical reaction where electrons are transferred from a high-energy molecule to a low-energy molecule. These reactions can be used to convert energy from sunlight in photosynthesis or extract energy from sugars in respiration. The electron transport chain is critical to the production of adenosine triphosphate, or ATP, which is a source of energy for living things.
Inhibitors of the Electron Transport Chain. As described in a former post, the inhibitors of the Electron Transport Chain are substances that bind to some of the components of the ETC blocking its ability to change in a reversible form from an oxidized state to a reduced state.