COVID-19 is caused by infection with the SARS-CoV-2 virus. This virus can infect the type II pneumocytes, a type of cell in the alveoli of the lungs that produce surfactants to ensure proper lung function. Type II pneumocytes have a diameter of about 9 μm. SARS-CoV-2 virus particles have a diameter of about 100 nm.
How much larger is a Type II pneumocyte than a SARS-CoV-2 virion?
HINT: compare their volumes, assuming both are spheres!
The Type II pneumocyte cell is 790,000X larger than a SARS-CoV-2 virion.
How much wider is a Type II pneumocyte than a SARS-CoV-2 virion?
The Type II pneumocyte cell is_________ X wider than a SARS-CoV-2 virion.
1) Let us review the given facts.
Type 2 pneumocyte = 9micrometer diameter
The Sars-Cov2 = 100 nanometer diameter
Now we know that 1 micrometer = 1000 nanometer, therefore 9 micrometers = 9000 nanometers.
Since we have been asked to assume a sphere, let us take the diameter as the representation of width. In a sphere, the diameter is its widest point.
The question asked is how many times is a type 2 pneumocyte wider than a Sars-Cov 2 virion?
Translating that as an equation, we get.
100 nm * x =9000nm
x = 90
Therefore a Type 2 pneumocyte is 90 times wider than an Sars-Cov2 virion.
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