Year 10 biology notes explaining cellular respiration. Covers aerobic respiration (glucose + oxygen → carbon dioxide + water + energy; complete breakdown across about 20 reactions producing ~36 ATP — 38 in a few cells), glycolysis (first stage occurring in the cytosol), and mitochondrial role in eukaryotes. Describes anaerobic respiration/fermentation: in animals glucose → lactic acid + 2 ATP; in plants (fermentation) glucose → ethanol + carbon dioxide + 2 ATP; notes that anaerobic breakdown yields much less ATP because glucose is not fully oxidised. Includes a short question section for student understanding.
Questions this document answers
glucose + oxygen → carbon dioxide + water + energy (CH12O6 + O2 → CO2 + H2O + 36 ATP)
36 ATP (38 in a small number of cells)
Glycolysis
In the cytosol of cells
Mitochondria