Glycolysis is a process that probably evolved billions of years ago when there was almost no molecular oxygen present in the atmosphere. Glycolysis is the process when one glucose molecule is broken down and forms two forms of pyruvic acid. This process involves several steps and occurs in plant cells, the cells of microorganisms and animal cells.
In the first stage of the process, ATP energizes the molecules that have to be expended in the process. The next thing that happens during this process is related to the six-carbon glucose molecule which converts into intermediary compounds, which are later split into two three-carbon compounds.
ATP molecules are synthesized using the energy that is created during the chemical reactions. The result is that four ATP molecules are synthesized and two of them are used during glycolysis.
Another thing that happens during this process is the conversion of NAD to NADH, plus a hydrogen ion. NADH will be used in the electron transport system and its energy will be then released.
Glycolysis is a process that uses no oxygen, so it’s considered anaerobic. For bacteria and fermentation, this process is the only source of energy. Nonetheless, glycolysis is an efficient process because an important amount of energy remains in the two molecules of pyruvic acid.
Usually, such a process is more difficult to understand, but if it’s taken step by step, you’ll have no problems. Read the following instructions:
1. First of all, you have to include structure names, enzymes, ATP, Pi and H2O.
2. Then, divide glycolysis in two phases: the first one is called energy investment phase and the second is energy payoff.
3. Additionally, start to learn the energy payoff phase, which involves manipulating a three carbon carbon to eventually yield pyruvate. All you have to do is to fill in the gap workaholic and that’s all.
Thus, this process is not as difficult as you may think, mainly if you take it step by step.