Biology question help?
Real human cells are spherical and approximately 50 µm in diameter. What would the surface area to volume ratio be for a human cell that size? Convert the µm into centimeters to start.
- SpacemanLv 78 months ago
D = cell diameter = 50 μm = 0.005 cm
r - cell radius = D/2 = 25 μm = 0.0025 cm
SA = cell surface area = 4πr² = 7.85398E-05 cm²
V = cell volume = 4πr³/3 = 6.54498E-08 cm³
SA:V = surface area to volume ratio = to be determined
SA:V = SA/V = 7.85E-05 cm²/6.54E-08 cm³ = 1,200 cm^-1Source(s): https://www.digitaldutch.com/unitconverter/length.... https://en.wikipedia.org/wiki/Surface-area-to-volu... https://www.mathsisfun.com/geometry/sphere-volume-...
- ChristianLv 58 months ago
Surface area to volume ratio of a sphere is S/V=3/r r=50micrometers or 50*10^-4cm. S/V=600cm^-1