Glycolysis

In this video, we will explore glycolysis, the first and central stage of cellular respiration. Glycolysis is a metabolic pathway that occurs in the cytoplasm of all living cells, where one molecule of glucose (6-carbon compound) is broken down into two molecules of pyruvate (3-carbon compounds). This process generates ATP and NADH, providing energy and metabolic intermediates for subsequent stages of respiration. Phases of Glycolysis 🔹 Energy Investment Phase (Preparatory Phase) The cell invests 2 ATP molecules to activate glucose. Glucose is phosphorylated and converted into two 3-carbon sugar molecules. This phase prepares glucose for efficient energy extraction. 🔹 Energy Payoff Phase The two 3-carbon molecules are oxidized and converted into pyruvate. Produces 4 ATP molecules through substrate-level phosphorylation. Generates 2 NADH molecules. Net gain: 2 ATP and 2 NADH per glucose molecule. #fscpremedical #biology #biochemistry #nmdcatlecture #plantphysiology #botany #premedical #medicalstudent #bszoology #medicalbiochemistry#glycolysis #metabolism #bioenergetics #respiration #neetbiology #fscpremedical #biology #biochemistry #nmdcatlecture #plantphysiology #botany #premedical #medicalstudent #bszoology #matric