In an endothermic reaction, the opposite happens. In this reaction, heat is absorbed. Or more exactly, heat is required to complete the reaction. Photosynthesis in plants is a chemical endothermic reaction. In this process, the chloroplasts in the leaves absorb the sunlight.
Martial arts. Martial arts are codified systems and traditions of combat practices, which are practiced for a number of reasons: as self-defense, military and law enforcement applications, mental and spiritual development; as well as entertainment and the preservation of a nation's intangible cultural heritage.
The term form is used for the corresponding concept in non-Japanese martial arts in general. Kata are used in many traditional Japanese arts such as theatre forms like kabuki and schools of tea ceremony (chado), but are most commonly known for the presence in the martial arts. Kata are used by most Japanese and Okinawan martial arts, such as aikido, judo, kendo, kempo, and karate.