Explanation:

Adipocytes are the major source of leptin production, and plasma leptin concentrations directly correlate with the amount of total body fat. Adipocytes are highly specialized cells that play a crucial role in the energy balance of most vertebrates. Adipocytes convert excess energy to tri-acylglycerol and deposit it during feeding in preparation for periods of food deprivation. Adipocytes may become enlarged by increased fat storage.