SCI 603: Q3

Cards (15)

  • Cellular Respiration (equation included): chemical breakdown of glucose in the presence of oxygen to produce ATP in cells that enables the work of living things
    C6H12O6 + 6O2 → 6CO2 + 6H2O + Chemical Energy (in ATP) + heat
  • Anaerobic: environments or processes without oxygen
  • Aerobic: environment or processes with oxygen
  • Facultative anaerobes: organisms that can use processes that both require oxygen and those
    that do not require oxygen (but usually only for a short period of time)
  • Alcohol fermentation: an anaerobic process that breaks down glucose into ethanol and carbon
    dioxide, will not occur with oxygen present, begins with glycolysis, produces very few ATP (4)
  • Glycolysis: chemical breakdown of glucose into 23-carbon molecules, produces 2 net ATP, requires 2 ATP to begin the process, 1st step of cellular respiration, does not require oxygen, takes place in cytoplasm
  • Krebs cycle: 2nd stage of cellular respiration, also called citric acid cycle, does require oxygen indirectly, produces lots of NADH and FADH and some ATP (2), takes place in mitochondrial matrix
  • Electron transport chain: 3rd and final stage of cellular respiration, does require oxygen, series
    of RED-OX reactions that use energy from krebs cycle to produce a ton of ATP (~28)
    Fermentation (generally), takes place across the inner mitochondrial membrane
  • Mitochondria: organelle that houses enzymes for cellular respiration 2nd and 3rd stages,
    present in eukaryotic cells
  • Cristae: folds of membrane within the mitochondria, allow for thousands of copies of the electron transport chain to occur within a single mitochondria
  • Matrix: fluid in compartment within the cristae of mitochondria, contains enzymes for the krebs cycle
  • NADH: high energy electron transport molecule, carries electrons in the form of Hydrogen(s)
  • FADH: high energy electron transport molecule, carries electrons in the form of Hydrogen(s)
  • 2 Reactants of cellular respiration: Glucose and oxygen
  • 3 Products of cellular respiration: carbon dioxide, water, and ATP (heat)