It is important to note that each type of trailer is not similar to the other types and that the dimension and weight capacity of each is based on the corresponding trucking specifications of a particular semi-tractor and trailer used.
Glucose is a six-memebered ring molecule found in the blood and is usually a result of the breakdown of carbohydrates into sugars. It enters cells through specific transporter proteins that move it from outside the cell into the cell's cytosol. All of the glycolytic enzymes are found in the cytosol.
Glycolysis means the splitting of glucose. The first step of the process occurs in the cytoplasm of the cell and yields a small amount of energy (measured in units of ATP) and two molecules of pyruvate. The other steps occur in the mitochondria. It is an ongoing process as your cells have a constant need for energy.