A substance was moving from a region of low concentration into a region of higher concentration of the substance. It is an aerobic process. It can be performed only by bacteria. It produces more energy per glucose molecule than does aerobic respiration. A. Lactate fermentation produces ATP molecules in addition to the few produced by glycolysis.
Lactate fermentation takes place in vigorously exercised muscle cells.
Lactate fermentation can take place under anaerobic conditions. Lactate fermentation in muscle cells often creates a need for O2 that must be satisfied later. The enzymes of glycolysis are located in the cytosol of the cell. Glycolysis can operate in the complete absence of O2. The end products of glycolysis are CO2 and H20.