What is respiration explain the different steps of glycolysis?


Question: What is respiration explain the different steps of glycolysis?

Respiration is the process by which living organisms convert nutrients into usable energy in the form of adenosine triphosphate (ATP). Glycolysis is the first step in cellular respiration, occurring in the cytoplasm of the cell. It is a series of enzymatic reactions that breaks down glucose into pyruvate. The process involves two major phases: the energy investment phase and the energy payoff phase. In the energy investment phase, two ATP molecules are consumed to activate glucose, which is then split into two molecules of glyceraldehyde-3-phosphate (G3P). In the energy payoff phase, G3P is further oxidized, generating energy and producing NADH and ATP. Each G3P molecule eventually becomes pyruvate, yielding a net gain of two ATP molecules and two NADH molecules. The pyruvate generated from glycolysis can either enter aerobic respiration in the presence of oxygen, continuing the energy production process, or undergo fermentation in the absence of oxygen.

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