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Ganezh [65]
2 years ago
9

How does the plasma membrane contribute to the structure and function of the cell?

Chemistry
2 answers:
Gennadij [26K]2 years ago
7 0

Answer: It forms a rigid structure that only allows materials to exit the cell.

Explanation:

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

An image of plasma membrane shows the phospholipid bilayer, embedded proteins, and cholesterol molecules.  The plasma membrane is the border between the interior and exterior of a cell. As such, it controls passage of various molecules—including sugars, amino acids, ions, and water—into and out of the cell.

I hope this helped you have a good day.

Flauer [41]2 years ago
6 0

Answer:<em> It forms a rigid structure around the cell that provides support to the cell</em>

<em />

<h3>WHY?:</h3>

<em>The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.</em>

<em />

<em>An image of plasma membrane shows the</em><u><em> phospholipid bilayer,</em></u><em> embedded proteins, and cholesterol molecules. ... The plasma membrane is the border between the interior and exterior of a cell. As such, it controls passage of various molecules—including sugars, amino acids, ions, and water—into and out of the cell.</em>

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Green light has a wavelength of 550nm. What is the frequency of a photon of green light?
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Speed of light is 3.0*10^8m/s .

We need to convert the wavelength from nm to m.

( 1nm=10^-^9m )

550nm(\frac{10^-^9m}{1nm})

= 5.5*10^-^7m

Now, let's plug in the values in the equation to calculate the frequency:

\nu =\frac{3.0*10^8m.s^-^1}{5.5*10^-^7m}

= 5.4*10^1^4s^-^1 or 5.4*10^1^4Hz

since, 1s^-^1=1Hz

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2 years ago
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