Shortcut Methods

TYPES OF CELLULAR RESPIRATION

Type of Cellular Respiration Description Oxygen Requirement Key Steps/Processes ATP Yield (per Glucose)
Aerobic Respiration Most common and efficient form of respiration. Requires Oxygen 1. Glycolysis 2. Citric Acid Cycle (Krebs Cycle) 3. Electron Transport Chain Up to 38 ATP
Anaerobic Respiration Occurs in the absence of oxygen or in low-oxygen environments. Oxygen Not Required 1. Glycolysis 2. Fermentation (e.g., lactic acid or alcoholic fermentation) Fewer than 38 ATP
Lactic Acid Fermentation Anaerobic process in which pyruvate is converted to lactic acid. No Oxygen Required 1. Glycolysis 2. Lactic Acid Formation 2 ATP (per glucose)
Alcoholic Fermentation Anaerobic process in which pyruvate is converted to ethanol and CO2. No Oxygen Required 1. Glycolysis 2. Ethanol and CO2 Formation 2 ATP (per glucose)


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