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The cell membrane regulates the passage of chemicals in or out of the cell. It is made up of a phospholipid Bi-layer consisting of many lipids much like the ones found in a detergent (Hydrophillic heads and hydrophobic tails). The tails avoid water and stay together - this makes a water proof barrier.
A cell membrane is known as partially permeable as it allows non-polar molecules (or very small polar molecules such as CO2) to pass through but stops larger polar molecules, H2O for example, from passing, this is useful as it prevents excessive water loss from the cell. The cell membrane is more detailed but for your question there is no need for that.
June Douglas
Wiki User
∙ 15y agoThe cell membrane regulates what goes in and out of the cell. It uses passive and active transport. Passive transport is when the cell membrane allows things to go in or out without doing anything. Active transport is when it has to actively open or close the membrane. It is made of phospholipid.
Wiki User
∙ 14y agoThe Cell Membrane filters what enters, and exits the cell. It also protects the cell.
Wiki User
∙ 14y agoThe cellular membrane defines the outer border of the cell and it the site through which the cell exchanges materials with the extracellular environment.
Wiki User
∙ 13y agoit allows things to pass in and out of a cell
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What is the purpose of the cell membrane in pond organisms?
The purpose of the cell membrane to pond organisms is to separate and protect contents in the pond cell from those outside the cell membrane.
What is the purpace of a cell membrane?
The purpose of the cell membrane is to let materials like nutrients in and materials like waste out of the cell. They act as doors for the cell.
How does the permeability of the cell wall differ to that shown by the cell membrane?
The cell wall's purpose it to keep a plant upright (Generally) and a membrane controls what enters and exits the cell. Was this the answer you were looking for? (WillyD)
What is the purpose or function of the cell membrane?
the cell membrane of a cell controls what enters and exits the cell so in theory the cell membrane acts as if it were a shield blocking harmful things from entering the cell and lets nutrients in.
What structure controls the passage of substances into and out of the cell?
cell membrane
What is the purpose of a cell membrane?
The purpose of a cell membrane is that it controls what passes into and out of the cell.
What is the purpose of the cell membrane in pond organisms?
The purpose of the cell membrane to pond organisms is to separate and protect contents in the pond cell from those outside the cell membrane.
What is the singilar possessive noun in purpose of the cell membrane?
The singular possessive form is: the cell membrane's purpose.
What os the purpose of the cell membrane?
to protect the cell
What purpose would a cell use a lipid monomer?
The purpose a cell would have to use a lipid monomer would be for use for the cell membrane. The cell membrane protects the contents of the cell.
What is the puropse of a cell membrane?
the purpose is that it filters what goes in and out of the cell:):)
Describe the purpose of the cell membrane?
the cell membrane keeps the stuff needed inside the cell in, and the stuff needed outside the cell out
What is the purpose of the cell membrane surrounding the cell?
It holds the cell together physically.
What is the purpace of a cell membrane?
The purpose of the cell membrane is to let materials like nutrients in and materials like waste out of the cell. They act as doors for the cell.
What purpose does the membrane serve?
The membrane of a cell protects the inner part of a cell and allows the passage of substances in or out of cell.
What protein is an integral membrane protein that helps move molecules across a cell membrane?
identify the name and purpose of the cell membrane proteins that look like tunnels
How does the permeability of the cell wall differ to that shown by the cell membrane?
The cell wall's purpose it to keep a plant upright (Generally) and a membrane controls what enters and exits the cell. Was this the answer you were looking for? (WillyD)
