BIOL 1001 Chapter : Biol 1001 Chap8
Document Summary
Energy flows through ecosystems while the chemicals within an ecosystem are recycled (see fig. Energy flow: light => organic molecules => atp + heat. We break down the glucose to co2 and energy (see fig 8-2) C6h12o6 + 6 o2 => 6 co2 + 6 h2o + energy (atp + heat) Is done by glycolysis and cellular respiration organic molecules => atp + heat. A multi-step pathway that takes place in the cytoplasm. Occurs with or without o2: glucose activation phase. >>>>>glycolysis harvests chemical energy by oxidizing glucose to pyruvic acid. --glycolysis is a catabolic pathway during which a six-carbon glucose is split into two three-carbon sugars, which are then rearranged by a stepwise process that produces two pyruvic acid molecules. The reactions of glycolysis occur in two phases: (see fig. The steps in the energy-investment phase(see page 131): 2 molecules of nad+ to nadh per glucose: energy harvest phase. Gives glucose a charge and traps it in the cytoplasm.
