Question

Which of the following is a function of the cell membrane?

a. breaks down lipids, carbohydrates, and proteins from foods

b. regulates the movement of materials into and out of the cell

c. stores water, salt, proteins, and carbohydrates

d. keeps the cell wall in place
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Answer 1

The Correct solution is Option b, Regulates the movement of materials into and out of the cell.

• The cell membrane is also known as the plasma membrane.
• It is a semipermeable membrane composed of lipids and proteins.
• It is found in all types of cells, in humans, animals, plants, bacteria, etc.
• It is the outermost boundary of the animal cells.
• The cell membrane's primary roles are as follows:
• Maintaining the integrity within the cell.
• Providing support and preserving the cell's shape.
• Through the balance of endocytosis and exocytosis, it aids in cell growth regulation.
• Cell signalling and communication are also facilitated by the cell membrane.
• It functions as a selectively permeable membrane, enabling only certain chemicals to enter the cell.

Answer 2

The function of the cell membrane is it  regulates the movement of materials into and out of the cell.

• Each cell is surrounded by a cell membrane or plasma membrane.
• The cell membrane is living and has fine pores through that substances may enter or leave the cell.
• Cell membrane is made up of lipoproteins
• The permeability of cell membrane is selective, that is, it allows atmost certain substances to move through while it prevents others.