What is the function of the cell membrane? Contains Organelles
Control center of the cell
Regulates what enters and exit the cell

Explanation:

The cell membrane is a phospholipid membrane that surrounds the cell and helps protect it. The main purpose of the cell membrane is to control the transport of substances that enter and exit the cell.

Therefore, the correct answer is regulates what enters and exits the cell.

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.