BIOL 1201 Chapter : Biol 1201 Chapter 9 With Diagrams
Document Summary
Energy flows through ecosystems while the chemicals within an ecosystem are recycled. Energy flow: light => organic molecules => atp + heat. --fermentation is the pathway in which both electron donors/acceptors are organic compounds. --cellular respiration is an atp-producing pathway in which the ultimate electron acceptor is an inorganic molecule. C6h12o6 + 6 o2 => 6 co2 + 6 h2o + energy (atp + heat) >>>>>the atp generated is used for work and then regenerated. >>>>>redox reactions release energy when electrons move closer to electronegative atoms. Oxidation-reduction reactions) are chemical reactions which involve a partial or complete transfer of electrons from one reactant to another. X is the reducing agent, and y is the oxidizing agent. Xe- is oxidized to x and y is reduced to ye- The transfer of electrons doesn"t have to be a complete transfer (shown above) it may only be a partial transfer (e. g. , combustion of methane)
