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Mass transport In organisms

Charlie2282

An amoeba is 0.3mm long
0. 3mm wide and 0.05mm thick
What is its volume and surface area

Reply 1

awkwardshortguy

Mass is transported in orgasm by peristalsis.

Reply 2

JessNaomi19600

So the volume would be: length x width x height
So: volume = 0.3 x 0.3 x 0.05 volume = 0.0045mm³

To calculate the surface area, it would be useful to draw it out as a cuboid to work it out, or you could calculate it:
Two of the sides (largest) = 0.3 x 0.3 = 0.09mm² so... surface area = 0.09 x 2 = 0.18mm²
Two ends = 0.05 x 0.3 = 0.015mm² so... surface area = 0.015 x 2 = 0.03mm²
Two sides = 0.05 x 0.3 = 0.015mm² so... surface area = 0.015 x 2 = 0.03mm²
Then, you simply add them altogether: 0.18 + 0.03 + 0.03 = 0.24mm²

Hope this helps :smile: