Q. Which feature of the cell allows or permits the entry and exit of some materials in and out of the cell?
Answer: Plasma membrane
Notes: The plasma membrane allows or permits the entry and exit of some materials in and out of the cell. It also prevents movement of some other materials. The cell membrane, therefore, is called a selectively permeable membrane.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 109 in 4. Cell Biology & Organelles in above course in App.