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  2. Light-dependent reactions - Wikipedia

    en.wikipedia.org/wiki/Light-dependent_reactions

    Then in 1939, Robin Hill demonstrated that isolated chloroplasts would make oxygen, but not fix CO 2, showing the light and dark reactions occurred in different places. Although they are referred to as light and dark reactions, both of them take place only in the presence of light. [12] This led later to the discovery of photosystems I and II.

  3. Effects of climate change on livestock - Wikipedia

    en.wikipedia.org/wiki/Effects_of_climate_change...

    One paper estimated that in Austria, at an intensive farming facility used to fatten up about 1800 growing pigs at a time, the already observed warming between 1981 and 2017 would have increased relative annual heat stress by between 0.9 and 6.4% per year. It is considered representative of other such facilities in Central Europe. [13]

  4. Fractionation of carbon isotopes in oxygenic photosynthesis

    en.wikipedia.org/wiki/Fractionation_of_carbon...

    The chemical pathway of oxygenic photosynthesis fixes carbon in two stages: the light-dependent reactions and the light-independent reactions.. The light-dependent reactions capture light energy to transfer electrons from water and convert NADP +, ADP, and inorganic phosphate into the energy-storage molecules NADPH and ATP.

  5. Bill Gates wants to 'fix the cows' so they stop burping ... - AOL

    www.aol.com/finance/bill-gates-wants-fix-cows...

    A controlled study run by Rumin8 and University of New England found an impressive 81% reduction in methane emissions when cattle had access to water troughs treated with the tech company's ...

  6. Photosynthesis - Wikipedia

    en.wikipedia.org/wiki/Photosynthesis

    Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the hydrogen carrier NADPH and the energy-storage molecule ATP. During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.

  7. List of cattle terminology - Wikipedia

    en.wikipedia.org/wiki/List_of_cattle_terminology

    A fresh cow is a dairy term for a cow (or a first-calf heifer in few regions) who has recently given birth, or "freshened." The adjective applying to cattle in general is usually bovine. The terms bull, cow and calf are also used by extension to denote the sex or age of other large animals, including whales, hippopotamus, camels, elk and elephants.

  8. Calvin cycle - Wikipedia

    en.wikipedia.org/wiki/Calvin_cycle

    The Calvin cycle, light-independent reactions, bio synthetic phase, dark reactions, or photosynthetic carbon reduction (PCR) cycle [1] of photosynthesis is a series of chemical reactions that convert carbon dioxide and hydrogen-carrier compounds into glucose. The Calvin cycle is present in all photosynthetic eukaryotes and also many ...

  9. Effects of climate change on agriculture - Wikipedia

    en.wikipedia.org/wiki/Effects_of_climate_change...

    The effect of reduced availability of water for irrigation is more significant, running at yield losses up to 35%. Due to climate change, livestock production will be decreased in Bangladesh by diseases, scarcity of forage, heat stress and breeding strategies.