Oil enters the vacuole of adipose cells by ?
A) exocytosis
B) facilitated diffusion
C) endocytosis
D) pinocytosis
To determine how oil enters the vacuole of adipose cells, we can consider the different processes involved in the movement of substances across cell membranes.
Exocytosis involves the fusion of vesicles with the cell membrane, allowing substances to be released from the cell. This process is typically used to eliminate materials from the cell.
Facilitated diffusion refers to the movement of substances across the cell membrane with the aid of specific protein channels. This process usually occurs when the substance moves from an area of higher concentration to an area of lower concentration.
Endocytosis is the process by which the cell takes in substances from the extracellular environment. It involves the formation of small vesicles that enclose the material and then pinch off from the cell membrane to enter the cytoplasm.
Pinocytosis is a specific form of endocytosis that involves the uptake of small liquid droplets into the cell. This process occurs when the cell takes in extracellular fluid.
Considering the options provided, the most likely method for oil to enter the vacuole of adipose cells would be through the process of pinocytosis (option D). Adipose cells are specialized for storing fat, and small droplets of oil or fat would be taken in by the cell through pinocytosis. This would result in the formation of small vesicles containing the oil, which would eventually fuse and merge to form larger vacuoles within the cell.