https://padlet.com/lisle202/emoyn5rpi6dw By: Erin Connolly en-us 2016-09-29 13:31:24 UTC 2025-09-30 01:00:48 UTC hello@padlet.com ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127246125 How does solute concentration affect movement of water across a membrane?]]> 2016-09-29 13:36:50 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127246125 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127506971 2016-09-30 12:59:36 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127506971 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127507127 2016-09-30 13:00:15 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127507127 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127507404 https://www.youtube.com/watch?v=pL8K1_4jX9k]]> 2016-09-30 13:01:16 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127507404 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127507598 I originally thought that the more solute concentration we used, the less movement of water there would be across a membrane.]]> 2016-09-30 13:01:57 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127507598 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127509263 1.) Core Potatoes
2.) Weigh potatoes
3.) Label cups with tape by which solute concentration will be in them
4.) Put solute concentration in cups
5.) Put three potatoes cores in each of the labeled cups]]> 2016-09-30 13:07:04 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127509263 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127509316 -Potatoes
-Cups
-Tape
-Solute Concentration
-Potato Corer
-Scale
-Microscope
-Elodea
-Water]]> 2016-09-30 13:07:13 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127509316 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127691395 2016-10-01 18:30:20 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127691395 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127691406 2016-10-01 18:30:39 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127691406 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127735263 In this part of the lab we put three potato cores in each one of the five cups.  Each cup had a different concentration.  From right to left the concentration is: 0.2, 0.4, 0.6, 0.8, and 0.0. As shown in the graph below, the movement of water across the membrane is more negatively affected when there is more solute concentration]]> 2016-10-02 16:46:45 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127735263 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127735276 In this part of the lab we took two pieces of an Elodea plant and placed them in different solutions. The picture on the left is the elodea in water and the picture on the right is the elodea in salt water. The elodea in water creates a hypotonic environment which causes the chloroplasts to be around the edges. The elodea in salt water is displaying plasmolysis making all the chloroplasts become centered since there is less water inside the cell.  ]]> 2016-10-02 16:46:54 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127735276 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127736472 2016-10-02 17:03:55 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127736472 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127756263 Through this lab I learned that the potatoes lost mass because it was a hypotonic solution, meaning that the potato had less solutes inside it than the solute concentration.  The potatoes that lost mass meant that they were in a hypertonic solution.  In the elodea part of the lab, I learned that plasmolysis was occuring in the elodea cells in the salt water. Since the cells in the elodea losing water because of osmosis, it was causing the plant to shrink which made the chloroplasts pull away from the cell wall. Overall, I learned that osmosis is when water moves from a lower concentration to a high concentration which explains why the potatoes placed in high solute concentrations lost so much mass.]]> 2016-10-02 22:12:29 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127756263 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/127756273 I learned that cells use osmosis to create equilibrium. I am curious about how the results would differ if we placed the potatoes in a different solution or placed the elodea in a different liquid. I think I performed well as the results we got for the potato lab were good. As a group, we worked well together. Everybody got their part done well and on time. ]]> 2016-10-02 22:12:34 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/127756273 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/128040413 2016-10-04 01:30:55 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/128040413 ec18167 https://padlet.com/lisle202/emoyn5rpi6dw/wish/128042260 2016-10-04 01:50:51 UTC https://padlet.com/lisle202/emoyn5rpi6dw/wish/128042260