The cvolume of certain bacterial cell is 2.56 μm3. (a) What is its volume in cubic millimeters (mm3)? (b) What is the volume of 105 cells in liters (L)?

Relax

Respuesta :

Answer:

For a: The volume of bacterial cell in cubic mili meters is [tex]2.56\times 10^{-9}mm^3[/tex]

For b: The volume of 105 cells is [tex]2.668\times 10^{-13}L[/tex]

Explanation:

  • For a:

We are given:

Volume of 1 bacterial cell = [tex]2.56\mu m^3[/tex]

To convert it into cubic mili meters, we use the conversion factor:

[tex]1\mu m^3=10^{-9}mm^3[/tex]

Converting the given volume into cubic milimeters, we get:

[tex]\Rightarrow 2.56\mu m^3\times (\frac{10^{-9}mm^3}{1\mu m^3})=2.56\times 10^{-9}mm^3[/tex]

Hence, the volume of bacterial cell in cubic mili meters is [tex]2.56\times 10^{-9}mm^3[/tex]

  • For b:

To convert it into liters, we use the conversion factor:

[tex]1\mu m^3=10^{-15}L[/tex]

Converting the given volume into cubic milimeters, we get:

[tex]\Rightarrow 2.56\mu m^3\times (\frac{10^{-15}L}{1\mu m^3})=2.56\times 10^{-15}L[/tex]

This volume is the volume of 1 cell.

To calculate the volume of 105 cells, we apply unitary method:

1 cell occupies a volume of [tex]2.56\times 10^{-15}L[/tex]

So, 105 cells will occupy a volume of [tex]105\times 2.56\times 10^{-15}=2.668\times 10^{-13}L[/tex]

Hence, the volume of 105 cells is [tex]2.668\times 10^{-13}L[/tex]