Part B Which of the following is a characteristic of the cell membrane? impermeable not permeable semipermeable fully permeable

The cell membrane is famously known for being semipermeable, which means it selectively allows certain substances to pass while blocking others. This characteristic is crucial for maintaining the internal environment of the cell, allowing essential nutrients to enter while keeping harmful substances at bay. Understanding the semipermeable nature of cell membranes is vital in various fields, like medicine and biotechnology. For example, drug delivery systems exploit this property to ensure that therapeutic agents can enter targeted cells effectively, while also navigating around potential barriers in the body. This knowledge can lead to innovative treatments and more effective pharmaceuticals!