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Science Nation: Got Silk? youtube/watch?v=ktgACq4zcAU

Spider Goats & Bullet Proof vests. Science Nation: Got Silk? http://www.youtube.com/watch?v=ktgACq4zcAU. Biopropecting – Dragline spider silk. Darwin’s bark spider (Caerostris darwini ) of Madagascar.

stephanie-ashley
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Science Nation: Got Silk? youtube/watch?v=ktgACq4zcAU

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  1. Spider Goats & Bullet Proof vests Science Nation: Got Silk?http://www.youtube.com/watch?v=ktgACq4zcAU

  2. Biopropecting – Dragline spider silk Darwin’s bark spider (Caerostris darwini) of Madagascar - Darwin's bark spider webs as wide as 82 feet (25 meters)—about as long as two city buses. – spans entire river, from bank to bank. Can catch 30 or more prey at a time. - 10 times stronger than kevlar

  3. Biochemistry – Dragline spider silk One of the major components of spider (dragline) silk are spidroins: Spidroin • Huge proteins = 3,000 amino acids • NUMEROUS repeats of amino acids – glycine, alanine and serine • Alanine & glycine are the smallest of the 20 amino acids in a cell. They can pack together closely to form β-pleated sheets. hydrogen bonds See animation of dragline spider silk -

  4. Bioengineering – Dragline spider silk Notre Dame Research: Transgenic Silkworms Spin Artificial Spider Silk - http://www.youtube.com/watch?v=WUFxdPVfG38

  5. References: Unraveling the Weave of Spider Silk - http://www.mhhe.com/biosci/genbio/life/articles/article1.mhtml The amazing spider silk - http://euchems2010.wordpress.com/2010/05/25/the-amazing-spider-silk/ Tying up spider silk's loose ends - http://www.rsc.org/chemistryworld/News/2010/May/12051004.asp Spidroin (music) - http://www.whozoo.org/mac/Music/Spidroin.htm Smooth evolution: spider silk proteins - http://www.lucasbrouwers.nl/blog/2010/08/the-smooth-evolution-of-spider-silk-proteins/ A Spider’s Web (problem of the week) - http://www.glencoe.com/sec/science/chemistry/mc/pow/chapter24.shtml

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