45.Insects do not have lungs as we do, nor do they breathe throughtheir mouths. Instead, they have a system of tiny tubes, called tra-cheae, through which oxygen diffuses into their bodies. The tracheae beginat the surface of an insect's body and penetrate into the interior. Supposethat a trachea is 1.9 mm long with a cross-sectional area of 2.1 × 10-º m².The concentration of oxygen in the air outside the insect is 0.28 kg/m², andthe diffusion constant is 1.1 × 10-5 m²/s. If the mass per second of oxygendiffusing through a trachea is 1.7 X 10-12 kg/s, find the oxygen concentra-tion at the interior end of the tube.

The mass of oxygen that diffuses in time t through trachea is, m=D×A∆C×tLmt=D×A×∆CL The…

Answered: 45. Insects do not have lungs as we do,…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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