https://padlet.com/mckinsey_medlin/fzc8swe5rs7w Kinsey and Katie en-us 2018-09-04 16:53:08 UTC 2024-05-24 18:36:34 UTC hello@padlet.com mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277671731 2018-09-04 17:27:31 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277671731 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277672792 2018-09-04 17:29:28 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277672792 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277673281 2018-09-04 17:30:23 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277673281 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277673905 2018-09-04 17:31:34 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277673905 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277674393 2018-09-04 17:32:36 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277674393 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277674976 2018-09-04 17:33:47 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277674976 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277676777 In this demonstration we got the bubble on the inside of the membrane and then we bent the edges to see if the film would break. The film not breaking, even though the "membrane" was bent, showed fluidity. The flexibility of a membrane increases when the molecules cannot assemble as tightly due to the tail of the phospholipid being bent. 




]]> 2018-09-04 17:37:19 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/277676777 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278012196 In a cell membrane the phospholipids attract to each other based on their charges. When a membrane is torn much like the bubble, the phospholipids are attracted back together automatically repairing themselves. In the bubble model, we were able to place our hand through the film and remove our hand without our bubble popping. This shows the ability of self-repairing substances. ]]> 2018-09-05 14:55:26 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278012196 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278015654 In eukaryotic cells there is an outer membrane surrounding the inner organelles. The organelles within the cell are what carry out cellular functions and keep the cell alive. ]]> 2018-09-05 15:00:05 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278015654 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278100751 This concept means that cell membranes are not rigid, they are able to bend therefore they can adapt to environments they are subjected to. ]]> 2018-09-05 17:28:09 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278100751 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278103999 In cell membranes the phospholipids are able to repair breaks in their bilayer due to their attraction to one another. This is a benefit for the cell because it is able to fix small damage done to it.]]> 2018-09-05 17:33:07 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278103999 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278196878 In a cell, there is a phospholipid bilayer that surrounds specilized organelles which, many, are also surrounded by their own membrane. In the bubble lab, the largest bubble represented the membrane of the cell and the small bubbles inside showed how organelles are within the cell (also surrounded by membranes). ]]> 2018-09-05 20:47:42 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278196878 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278198219 In a cell, there needs to be ways that molecules can get through a membrane. Cell membranes are selectively permeable and allow small or non polar molecules to pass through with concentration gradient. However, larger or charged particles need protein channels or pumps to cross the membrane effeciently. Without these pumps, many substances needed for cell survival would not be able to leave or enter the cell. ]]> 2018-09-05 20:53:40 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278198219 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278198750 The loop here created a hole that something large could freely pass through. This is representing when a protein channel is created in a cell membrane to allow substances going against the gradient or too large for passive transport, to cross the membrane without damanging it. ]]> 2018-09-05 20:55:27 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278198750 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278199313 In this picture it kind of looks like we were starting to blow a bubble right up next or inside the other bubble. We were trying to create a tunnel much like cells require to be able to function properly. If you look closely in between the straw and bubble you can see a small tunnel forming. ]]> 2018-09-05 20:57:32 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278199313 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278199469 The tunnel or gap junction in a cell allows for molecules to pass through smoothly between cells. Without this easy way to get ion and molecules needed, cells would not have the materials needed to function. ]]> 2018-09-05 20:58:12 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278199469 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278199814 Bacteria cells reproduce asexually through binary fission. This happens by the cell splitting in half, this seperates the parent cell into two daughter cells. Without the ability to reproduce, new cells could not be made which means we would all run out of cells eventually and deterierate. ]]> 2018-09-05 20:59:45 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278199814 mckinsey_medlin https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278200012 The string in this picture is representing the imaginary line of a bacteria cell reproducing or "cutting in half" through binary fission. ]]> 2018-09-05 21:00:38 UTC https://padlet.com/mckinsey_medlin/fzc8swe5rs7w/wish/278200012