Cell Membrane


Discovery

The cell membrane was discovered by 2 swiss botanists, Carl Naegeli and C. Crame, in 1855. It was discovered 200 years after the microscope was created.
The name membrane means a pliable sheetlike structure acting as a boundary.
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Carl Naegeli
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C.Crame
Functions

The functions of the cell membrane are to protect the cell and to control the movements of substances moving in and out of the cell. Phospholipid creates the basic structure of the cell membrane is called the lipid binary. Inside the lipid, binary are cholesterol molecules, scattered inside. This helps keep the membrane liquid. The smaller molecules shown in the phospholipids are Cholesterol molecules. They help to provide rigidity or stability to the membrane. The membrane proteins help to transport substances across the cell membrane. It helps with the structure of the cell because it is on the outside protected the cytoplasm on the inside of the cell. The protein channels on the inside of the cell membrane help to move in substances to the cytoplasm and into the rest of the cell.
Image result for the structure of the cell membrane
Image result for the structure of the cell membrane

This is the cell membrane structure
What type of cell have a cell membrane?

All cells have a cell membrane but not all have a cell wall. The animal cell contains a cell membrane and a plant cell contains a cell membrane and a cell wall. All cells need a cell membrane to transport proteins into the cell.
Image result for animal cell and plant cell
Image result for animal cell and plant cell

Both of the cells contain a cell membrane
Organelle working in conjunctions to the cell membrane

The cell membrane work in conjunction with the cytoplasm. It can conduct osmosis to send substances. The cell membrane can send in proteins for the cell.
Image result for cell membrane
Image result for cell membrane

Word to know

Cytoplast: the intact cytoplasmic content of a single cell.
Osmosis: a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane
Phospholipid: a lipid containing a phosphate group in its molecule
Image result for cell membrane
Image result for cell membrane

Analogy

Cell Membrane is to cell:
Case is to cell phone

A cell phone case wraps around the cell phone to protect it from falls
Image result for cell membrane
Image result for cell membrane

Image result for phone case on phone
Image result for phone case on phone

Work Cited
https://en.wikibooks.org/wiki/Cell_Biology/Membranes
https://www.thoughtco.com/cell-membrane-373364
https://biologydictionary.net/cell-membrane/