Which of these statements best describes the function of the cell membrane?
A. It allows substances to freely enter and exit the cell. B. It controls which substances enter and exit the cell. C. It prevents substances from entering the cell. D. It prevents substances from leaving the cell.
The correct answer is B- the cell membrane controls which substances enter and exit the cell, specifically the nucleus. Cells play a very important role and every living thing is made up of cells. Cells are made up of very important parts which create human life so it is vital that these important parts are protected.
This is what the cell membranes are used for. The cell membranes protect these parts of the cell and keep them all together. The membrane can also attach itself to cell walls to form tissues that make up your body.
The correct answer is B. the cell membrane controls whatever is entering and exiting the cell. As the cell is somewhat the source of life and energy of a specimen, it is very important that the organelles inside are protected from outside invaders.
The cell membrane secures that all the parts of a cell remains inside and are doing their jobs. Imagine a cell without having a cell membrane, all the parts are floating in space and no animal or human will not form. It also serves as an attachment to other cell walls so the cells can successfully form a tissue.