Question

when glucose is split in half, it is then called a pyruvate. where does glycolysis occur? cytoplasm does it require oxygen? (aerobic vs anaerobic) w/ or w/o oxygen what is the net gain if atp? 2 atp & 2 naoh after glycolysis, if oxygen is present, the cell will then go into aerobic respiration. if oxygen is not present, the cell will then go into anaerobic respiration. anaerobic respiration/ fermentation definition- what is the net gain of atp?

Explanation:

Glycolysis is the first - stage of cellular respiration where glucose is split into two pyruvate molecules. It occurs in the cytoplasm and can happen with or without oxygen (anaerobic or aerobic conditions). The net gain from glycolysis is 2 ATP and 2 NADH. After glycolysis, if oxygen is present, aerobic respiration occurs; if not, anaerobic respiration or fermentation occurs. Anaerobic respiration/fermentation also has a net ATP gain which varies depending on the type (e.g., in lactic - acid fermentation, the net gain is 2 ATP).

Answer:

• When glucose is split in half, it is called pyruvate.
• Glycolysis occurs in the cytoplasm.
• It can occur with or without oxygen.
• The net gain of ATP in glycolysis is 2 ATP and 2 NADH.
• After glycolysis, if oxygen is present, the cell goes into aerobic respiration; if oxygen is not present, the cell goes into anaerobic respiration.
• Definition of anaerobic respiration/fermentation: A process that occurs in the absence of oxygen to produce energy, with a net ATP gain (varies depending on type). For common types like lactic - acid fermentation, the net ATP gain is 2 ATP.