The primary purpose of the cell membrane is to preserve the cell from its surroundings
<h2>Explanation:</h2>
The primary purpose of the cell membrane is to preserve the cell from its surroundings.The cell membrane is also named selectively permeable membrane for the single reason being it is particular in nature. Furthermore, in diffusion and osmosis, only specific molecules transfer through the cell membrane. Diffusion helps the entrance of important molecules like water, carbon, and oxygen.
The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings. It consists of the phospholipid bilayer with embedded proteins.
My favorite, lysosomes. These break down old cells parts and remove waste. They do this by releasing enzymes that can break down food particles, old cell parts and engulfed bacteria and viruses. Did you know that if the cell knows its health is poor the lysosome will kill the it's own cell.
The answer to the question above is letter A. competition. The animals compete for their territories that is why they feel the need to mark the land by urine in order to discourage other animals claiming the same territory. Some of the animals doing this are cats and dogs.
