Real World Connections Actvity by Melissa Nguyen https://padlet.com/melissanguyen16/xbzg3erqm1pr Does salt really kill slugs? en-us 2017-11-18 00:33:14 UTC 2017-11-28 01:38:03 UTC hello@padlet.com Does salt really kill slugs? melissanguyen16 https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208326860 Yes, salt kills slugs. When salt is poured on a slug, the water inside the slug's cells, which has a higher concentration of water, gets drawn out to balance the salty environment, which has a low concentration of water. Slugs have moist skin, a characteristic of a slug that is essential for living, and when the water is drawn out, it leaves the slug dried up and dehydrated.]]> 2017-11-18 00:41:21 UTC https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208326860 How does this relate to osmosis/diffusion/transport or concentration gradient? melissanguyen16 https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208327065 Osmosis is the diffusion of water from a high concentration to a low concentration. When salt is poured on the slug, the water on the slug's moist skin (high concentration of water) is drawn out of the slug's cells in attempt to balance the salty environment. ]]> 2017-11-18 00:45:18 UTC https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208327065 How does the slug respond to maintain homeostasis? melissanguyen16 https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208327691 The water in the slug's cells leave its cell membrane to balance the amount of salt on the slug's skin. This is the slug's attempt to maintain homeostasis, except it only ends up hurting the slug by leaving it dehydrated. ]]> 2017-11-18 00:55:21 UTC https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208327691 Detailed description of the process involved melissanguyen16 https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208328166 The salt poured on the slug's skin has a really low concentration of water, so the water in the slug's cells get drawn out of the cell through the cell membrane to the surface of it's skin to balance the solute and solvent levels. The water in the slug's cells have a higher concentration of water so that's why it gets drawn out. The absence of water in the slug's cells leave the slug dried and dehydrated and eventually it ends up dying.]]> 2017-11-18 01:06:41 UTC https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208328166 Sources Cited melissanguyen16 https://padlet.com/melissanguyen16/xbzg3erqm1pr/wish/208328640 Source 1:
http://www.slugoff.co.uk/slug-facts/salt
Source 2:
http://scienceblogs.com/ethicsandscience/2009/05/11/how-does-salt-melt-snails/
Source 3:
http://education.seattlepi.com/examples-osmosis-3608.html

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