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In calculating GJ for cytoskeletal proteins (Table 3.2), we ignored the fact that microtubules are hollow. Recalculate G and GJ for a hollow microtubule, assuming that the inner radius is 11 nm. How large was our error? Was our order-of-magnitude estimate acceptable?

In calculating GJ for cytoskeletal proteins (Table 3.2), we ignored the fact that microtubules are hollow. Recalculate G and GJ for a hollow microtubule, assuming that the inner radius is 11 nm. How large was our error? Was our order-of-magnitude estimate acceptable?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Table 3.2 Cytoskeletal torsional stiffnesses R G GJ Microtubule 12.5 nm| 38,400 nm4 1.9 x 10° N/m2 73 x 10-24 Nm² Intermediate filament 5.0 nm 980 nm4 2 x 10° N/m2 1.8 x 10-24 Nm2 Actin filament 3.5 nm 230 nm4 1.9 x 10° N/m2 0.45 x 10-24 Nm2
Transcribed Image Text:Table 3.2 Cytoskeletal torsional stiffnesses R G GJ Microtubule 12.5 nm| 38,400 nm4 1.9 x 10° N/m2 73 x 10-24 Nm² Intermediate filament 5.0 nm 980 nm4 2 x 10° N/m2 1.8 x 10-24 Nm2 Actin filament 3.5 nm 230 nm4 1.9 x 10° N/m2 0.45 x 10-24 Nm2
In calculating GJ for cytoskeletal proteins (Table 3.2), we ignored the fact that microtubules are hollow. Recalculate G and GJ for a hollow microtubule, assuming that the inner radius is 11 nm. How large was our error? Was our order-of-magnitude estimate acceptable?
Transcribed Image Text:In calculating GJ for cytoskeletal proteins (Table 3.2), we ignored the fact that microtubules are hollow. Recalculate G and GJ for a hollow microtubule, assuming that the inner radius is 11 nm. How large was our error? Was our order-of-magnitude estimate acceptable?
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