Why do you call cell membrane as selectively permeable membrane?

The cell membrane is also known as selective permeable membrane because: The cell membrane regular the movement of material in and out of the cell

answer; i believe the correct answer is (sporophyte);

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.