Assume that the surface area of a cell in the lungs that is exposed to air...

Question

Question

Assume that the surface area of a cell in the lungs that is exposed to air is square-shaped. As a result of a prescription dr

Answer 1

Answer #1

1) The surface area of square= Length x Width

=1mm2

If the sides of the square-shaped cell double then the surface area would be=2x2=4 mm2

2) Cell size is given by Surface area/volume

Surface area of cube=Length x width x 6

=1mmX1mmX 6 (All the sides of cube are equal)

=6mm²

Volume of cube=X³=1mm x 1mm x 1mm=1mm³

Sides increased by a factor of 2 then

Surface area=2x2x6=24 mm2

Volume=2x2x2=8mm3

SA:V ratio=24/8=3:1

Answer 2

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