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)