Race Omaha is a non-profit 501c3 organization whose mission is to provide opportunities for all ages and abilities to participate in events that promote active and healthy lifestyles. All of our events are sanctioned by the USA Triathlon. The USAT is the sanctioning authority for more than 4,300 events across the nation.
1 Redox reactions may involve the transfer of electrons between chemical species. 2  The reaction that occurs when In which I 2 is reduced to I-and S 2 O 3 2- (thiosulfate anion) is oxidized to S 4 O 6 2- provides an example of a redox reaction :
Soils. Light and dark reactions in photosynthesis. Photosynthesis is divided in two parts: 1. Light-dependent reactions (light reactions). 2. Light-independent reactions (dark reactions). Light reactions need light to produce organic energy molecules (ATP and NADPH). They are initiated by colored pigments, mainly green colored chlorophylls. Dark reactions make use of these organic energy molecules (ATP and NADPH). This reaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy, while NADPH provides the electrons required to fix the CO2(carbon dioxide) into carbohydrates.