You are asked to justify why your research on plasma membranes is so important. you reply that

Plasma membranes regulate what substances go into and out of the cell and helps provide a barrier to bad toxins or bacteria. It is also allows necessary proteins in and keep pathogens out. The ersearch on plasma membranes is very important i justified with the following:

- stydying the plasma membrane's interaction nutrients helps to understand the way in which active tarsnport occurs

- helps to undertand the communication between cells.