The Video lecture from Bioenergetics (F.Sc. First Year Biology) covers the first two phases of cellular respiration occurring in cytosol of the cell i.e. Glycolysis and Pyruvic Acid Oxidation. Glycolysis includes two phases: preparatory phase and oxidative phase. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.