Cells get energy by breaking down food molecules to release the stored chemical energy by a process called 'cellular respiration'. During the process Oxygen is used to oxidize food, that oxidized food is known as glucose.
Endocytosis may be defined as a type of cellular process by which the substance are brought into the cell. The phagocytosis and pinocytosis are involved in the endocytosis.
Since, the substance has been entered into the cell through transcytosis. The substance is engulfed after binding to its receptor and entered into the cell. This type of membrane transport is involved in the process of endocytosis only.
Glycolysis is the first step it the cell respiration cycle. It turns one molecule of glucose into two molecules of pyruvate by a series of reactions catalyzed by different enzymes.
It starts by using 2 ATP to turn glucose into fructose-1,6-bisphosphate, which then divides in two and releases 4 ATP when it turns into two pyruvate molecules.
Thus glycolysis consumes 2 ATP and releases 4 ATP (giving a net gain of 2 ATP) and 2 pyruvate molecules.
