What is a function of the cell membrane?

The main function is to protect the cell from its surroundings

The function of the cell membrane is to allow things to move in or out of the cell

It will allow macro-molecules, food, etc in to help the cell

It will force out/not allow any unnecessary "stuff" or viruses

[content deleted] - user123802726recklesschicken

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.