0
The three main functions of the cell membrane are:
1) It regulates materials that come in and out of a cell. It is selectively-permeable, meaning it allows certain molecules or substances to enter but keeps the others out, and vice versa (active and passive transport). In this way, it also protects the cell from harmful substances from the outside.
2) It helps to retain the cell's shape (along with the cytoskeleton) and maintain its integrity, as well as the organelles and materials inside.
3) To send and receive messages between cells.
What else can I help you with?
What are two jobs of cell membrane?
protect a cell regulate what goes in and comes out
What are the jobs of the plasma membrane?
They protect the cell, give it shape and regulates what goes in and out of the cell.
What city analogy compares to a cell membrane?
if a cell membrane was in a city what would it be?
What type of vesicle contains chemicals that breakdown materials in the cell and breakdown old cells and old cell parts?
This is the membrane organelle called the lysosome and has many enzymes within it to do the jobs you described.
What does various jobs within a cell?
a nucleus does various jobs within a cell. It controls the chemical reactions in the cell. It is like the Brain of the cell.
What are the three parts of a cell and what there jobs are?
the 3 parts of a cell are : 1 Nucleus- this controls what happens inside the cell . 2 Cell Membrane - this controls what substances enter and leave the cell 3 Cytoplasm - this is where the chemial processes occur
What are the three jobs of the cell wall?
The three jobs are: Maintain the shape of the cell; Protect the cell; Prevent bursting due to turgor pressure.
What are two jobs of cell membrane?
protect a cell regulate what goes in and comes out
What are the jobs of the plasma membrane?
They protect the cell, give it shape and regulates what goes in and out of the cell.
Why does a cell that has a cell wall need a cell membrane?
Cell walls and cell membranes have different purposes in a plant cell, the cell wall is for support structure and in some cases protection, where as the cell membrane has many different jobs for the cell, which the cell wall don't perform, such as regulating the flow of what enters and exits the cell .
Two activities of the cell membrane are?
The cell membrane regulates what substances can enter and leave the cell through its selective permeability. It also helps maintain the cell's shape and structure by providing support and protection.
Three jobs of the cell membrane?
1)It gives protection to the cell. 2)It prevents the internal environment of the cell from exposing to the external environment. 3)It allows the exchange of certain selective materials from the external environment of the cell into the cell and vice versa such as oxygen and carbondioxide. 4)In some unicellular organisms like amoeba, the flexible cell membrane allow to engulf in food particles and expel waste matter. This process is called endocytosis.
What city analogy compares to a cell membrane?
if a cell membrane was in a city what would it be?
What Three jobs that proteins do in your body?
Structure (Hair and Nails) Signal (Hormones) Storage (Seeds and Beans) Contractile (Muscle Fibers) Defense (Antibodies) Enzymes (Amylase, Lipase, Protease) Transport (Hemoglobin, Cell Membrane)
What are three ways the body uses fat?
The cell membrane (the protective, semi-permeable layer that surrounds the cell) is made of phospholipids. In your own body, fats help store vitamins and minerals and are a useful source of energy. The fats have three jobs: form part of the structure of cells protects and supports internal organs acts as a insulation to keep heat inside your body
What are the jobs that fats have in the body?
The cell membrane (the protective, semi-permeable layer that surrounds the cell) is made of phospholipids. In your own body, fats help store vitamins and minerals and are a useful source of energy. The fats have three jobs: form part of the structure of cells protects and supports internal organs acts as a insulation to keep heat inside your body
The cell takes in food and water and eliminates wastes through the what?
Hi! There are two process that do these jobs, and they both occur at the cell membrane. Endocytosis is the take in of materials such as food into the cell. There are two types of endocytosis: Phagocytosis and Pinocytosis. Phagocytosis makes the cytoplasm of the cell extend and "surround" the food and packages it into a vacuole. Pinocytosis sets up "traps" along the cell membrane to tract and collect food. Exocytosis is the excretion of waste products out of the cell. Here is how Prentice Hall Biology described it "The membrane of the vacuole surrounding the material fuses with the cell membrane, forcing the contents out of the cell." This is like a counter part of endocytosis, the process by which cells take in materials from outside the cell. Good Luck
