How to shrink ONION CELLS - and make them explode as well | citizen science
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- เผยแพร่เมื่อ 4 ส.ค. 2024
- I show you how to shrink and swell onion cells. Here I do plasmolysis of red onion cells using salt water. The process was then reversed and cells were then given pure water and cytolysis started to happen. The cells then popped open. The process of water moving in and out of the cells was by osmosis. [video: 098]
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Cell : Im not feeling really good
other cells : oh god no
Cell *POP*
Another mad scientist that kills in the name of science.
🤣🤣🤣🤣😁
Cell: *exists*
Scientist: Im about to end this man's whole carreer
You're a cool dude, Thank you for educating people.
Your videos are really interesting, thanks. Great potential, I hope your channel will blow up to the 6-7 figure subs.
You are very good at explaining these concepts. Perfectly clear and interesting. Its like ther is no need for a teacher.
You are one of my favourite science TH-camrs🥰🥰
Awesome explanation!
Best intro on TH-cam 👍👍👍
Thanks for a great vid, much appreciated.
Great videos and wonderful explanation!
Thank you for sharing these videos and spreading microknowledge!! I’m taking microbiology right now and it is such a fun class for me, I learn and understand so much more about microbes by watching your channel! Keep microbehunting!
Sir you are doing great work, thank you.
Inspired by you, I am doing this right now! :D Thank you.
So fascinating! Thank you!
AMAZING. Cant wait to try!
He's so cute. I wish I could meet him. I came here to educate myself, but his cuteness distracted me 😅. Good explanation !!!
Love your videos very much!
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I love your videos!!!!
I love your videos. Very fun, interesting, and educational. 😊
Such a great informational video! Loved the explanations and diagrams you drew. Keep it up!!
I had a bloodpatch done yesterday and a spinal tap last week and this is about what I'm feeling like right now .
You doing great work... carry on😘😘😘😘
I love it!!
Made my day
Onions are a good source of _Aspergillus niger_ fungi, garlic also has some nice oxalate crystals and also many times have _Alternaria_ sp fungi.
You r cool. Best video
What is the difference between infinity and "regular" optics?
Thank you oliver for taking up my idea! May Jesus bless you
Super. Vijay
I learned more in this video than I did during the 8+ years of public education. Thank you!
i think i have an explanation for why these cells explode. So when the saltwater makes contact with the cells, it drains the water from them. They then shrink and the cell membrane actually gets smaller until a certain size. when re-introduced with water, the cells absorb it, but because the cell membrane has shrunk its strained to a certain size, and with the cell absorbing mass amounts of water, the membrane stretches out, stresses and tears, causing the pop. The cells could possibly regrow the damaged membranes but it'd take some time. Btw, this video was great. Any comments on my theory, feel free to add them. Edit: i forgot to mention that the cells retract after the explosion, returning to their "original" size.
Nope, I think when the cells pop, they die. The membrane was damages after plasmolysis and reverse-plasmolysis, making the membrane loosing its plasticity. We cut the tissue out, cells will die any way. It is different from normal condition.
@@thuchanhsinhhoc3138 That is a reasonable theory. It's all about perception And estimations, we can only guess/estimate what is truly happening
Thank you for all these wonderful ideas for us to replicate. I wouldn't have thought of something like this! Now I'm going to do this with my son. We just bought the microscope you recommend for amateurs. :)
ah s this is why when you put a colored plant or something in water the water turns into that color! its cause the cells was popping :b (we didnt have a microscope in online school so I'm searching it up on how it would look like :b)
Hello, it seems to me as though the alcohol dries the cell too quickly causing micro-cracks in the cell wall (like in oil paintings that have added a drier to the paint or surface and in time this causes the painting to show more and more cracks due to the fact that the media never really sets, it is always drying). Then you add water back to the cell and the race begins with speed to burst the walls.
Hellow! I want to make permanent slide. I want to know what to use, nail polish or mounting medium?
Excelente,voy a probar en casa gracias
May you kindly explain what are the black spots?
It seems that cells burst at the spots where the plasmodesms were, might be that the cell membrane might be a bit weaker there. Just a tought
Does it not regain same cell size because of tissue membrane destruction due to Na cl damaging or stunting possibly killing the outer membrane cells?
So early the video it's still in 360p lol btw very interesting video about osmosis!
me too
Same
Somewhere there are lawyers and legislators trying to figure out a way to make money protecting the rights of cells. ;-)
when u put ur knife there, the cells are actually exploded
Hi, I bought a new microscope, my condenser lens has a little scratch, but I am able to see the specimens clearly, will it cause any issues during some observations?? Thanks again
unlikely. If there is dust and dirt on the condenser you can make it "disappear" by lowering the condenser a bit. A scratch would have even less of an effect.
So is it mushy now?
Pop
Can a cell membrane be seen by a light microscope?
If yes, then how?
No, it is too thin to be seen directly. Electron microscopes can see it.
Can I use that red pigment to stain other cells? I mean when they "pop", they release the red liquid. Can I use that to stain other cells?
It might not be strong enough but you could give it a try. Red beet might also be worth a try (more pigment).
@@Microbehunter Thanks... I'll give it a try.
I was taught that plant cells didn't die by getting turgid, interesting!
I was too, in biology. I think maybe they mean under normal conditions if there's a lot of water. You know, like where a plant might actually live. Not usually in super saline water. The concentrated salt must've done something.
Or maybe it means the cell wall won't burst from it? Not sure I guess.
Here my thought: when the plant is wilted by losing water, the cell plasmolysed. You water the plant, making the plasmolysis reversed, or the plant cell become turgid. This happens regularly, when the plant is set in its normal physiological condition. In the experiment, it 's different for the chopped tissue. When the plasmolysis and reverse-plasmolysis is undertaken, the plasma membrane looses its plasticity and can't reach the actual turgid stage. And here we come, Pop...pop....
All I have to say is...
*POP!!!!*
do only plant cells pop like this?
This made me wonder what happens to our skin when we swim in the ocean
@@tcuisix we are sucked dry like a human raisin
And you don't want to see what happens when you get in fresh water
That's my daily shitpost
@@supercomputer0448 pop?
The kidneys regulate the osmotic pressure in your body by removing salts and stuff, so animal cells are protected in the body. But if animal cells were isolated, they would also shrink and pop. Animal cells don't have cell walls, so they're not protected from bursting.
does this work on the corona virus?
Hand soap does the same thing, because the soap molecules are much simpler than the virus it creates micro holes when adding water to fill it like a water balloon untill it explodes.
I would suggest fighting coronavirus with soap, by RCSBProteinDataBank on TH-cam
Rip Eddie Munson
can someone explain something to me? i get how molecules flow based on concentration gradients, but why does that just apply to the water in this case? why doesn’t the cell passively take up sodium ions? sodium ions have a smaller radius than water molecules so why don’t they freely permeate the cell walls? is the cell actively transporting the sodium out? i don’t see how that would be advantageous as it would use energy and potentially lead to the protoplasm losing most of its water
The sodium is able to pass the cell walls just fine, but not through the cell membrane. Water is able to pass through the cell membrane.
@@Microbehunter Thank you; do you know why or how the sodium is blocked by the cell membrane? If water can permeate it passively, why can't sodium ions? Sodium is smaller than water molecules
It is not only a question of size. Sodium (Na+) are very hydrophilic (polar) and the center of the cell membrane is hydrophobic. It is not hydrophobic enough to block water but to block sodium. Try mixing salt (NaCl) and oil. They will not mix.
@@Microbehunter oh that makes a lot of sense. this was the explanation i was looking for, thank you!
Be sure to drink lots of water everybody
thanks oliver. i'm confused now, i thought that brining food makes it juicier by absorbing the brining liquid; this video seems to imply the opposite, no?
John F The reason water moves out in this video is because the water potential is higher in the cells, so it moves down the gradient to the low water potential (the salt water had the lower water potential). ‘Brining’ page on Wikipedia says that salt diffuses into the cells lowering the water potential before drawing more water in... I’m not convinced check it out for yourself tho :)
I feel kind of guilty for laughing when the cells were popping with a pop.
No need😀😁
Hellow
my teacher brought me here
Osmosis jones
360p?
Me: I should study for finals tomorrow
TH-cam: Hey watch these onion cells exploding
BTW could a cell function without a cell wall? So like if you were to take what is inside a cell and place it in a testtube would it still be alive?
Maybe, if there were forces that kept the stuff from separating out everywhere and from being destroyed by other chemicals.
This is why you should never drink sea water if you are stranded in the ocean.
Yep, the water from your intestinal lining moves out into the salt water causing even more extreme dehydration.
and it took ssj2 to destroy cell in dragon ball
If you put a saltwater fish into a freshwater lake, the fish will explode xD
Who else is watching this in school
10:17
Do you see what I see?
A suspicious number of tissues?
@PLENARYBAKER 20 He spits when saying the word "short", lol.
@@koekum2142 Lol, nope.
Poor cells. :(
Nice observation.
This is illegal in America. Just kidding. 😜
i dont fucking understand.
silly intro that is
There are so many African children dying of hunger. Why you wasting onion?
It's illegal to use children.
@@kazimir8086 That and, children don't have cell walls.