The cell membrane, the outer boundary surrounding a typical cell, is often described as being ‘selectively permeable,’ meaning what?

Explanation

The cell membrane, the thin outer boundary surrounding the contents of a typical cell, is often described as being selectively permeable, meaning it allows certain specific substances, such as oxygen and some nutrients, to pass relatively freely into or out of the cell, while restricting, controlling, or entirely blocking the passage of various other substances. This selective control helps the cell carefully regulate its own internal chemical environment, keeping essential substances in place while helping to exclude many potentially harmful ones. Various specialized proteins embedded directly within the cell membrane often play an important, active role in helping to precisely regulate and facilitate this overall selective transport process. Explore more Everyday Science MCQs on mcqstutor to keep practicing.