Thanks very much, Dragacron! I actually made this video back when I was teaching this same content because it was such a pain to try to draw this on the board. And yes, please show this to your teacher and classmates; I hope it's helpful! Do you have suggestions for future videos?
Thanks very much, Dragacron! I actually made this video back when I was teaching this same content because it was such a pain to try to draw this on the board. And yes, please show this to your teacher and classmates; I hope it's helpful! Do you have suggestions for future videos?
Thanks very much, Dragacron! I actually made this video back when I was teaching this same content because it was such a pain to try to draw this on the board. And yes, please show this to your teacher and classmates; I hope it's helpful! Do you have suggestions for future videos?
It has an operculum on both sides on its body which protects the gill slits . When the fish opens its mouth ,water flow into the area called the buccal cavity The fish needs to push the water over its gills and then out of the operculum in order to extract the oxygen and remove the carbon dioxide from the tissue . To do this , the fish first close its mouth ,when it does this , the water is pushed out of the operculum opening over the gills and back to the water . As the water moves over the gills on its way out of the operculum the oxygen is extracted and moved into the fish’s blood stream and carbon dioxide is removed . -this is the notes I took
Loved it! I was wondering whether the fish next door to the fish that was breathing would have enough oxygen after fish 1 took it but you answered my question in the video. Fish need 100% oxygen though humans would die if they breath 100% oxygen... intersting.
Thanks, Ramya! Glad to hear it was helpful, I had fun making it! Please share with classmates, if you think they might also find it useful. Sending love from Boston! -BOGO
how exactly does the fish's blood extract the water's oxygen? What does that look like? Figuratively speaking, is it like a hand in the blood that reaches into the water flowing by, pokes around super quick for some oxygen in the water, then grabs it and tucks it into its pocket, so to speak? Seriously, I'd love to know exactly how the blood apprehends the oxygen in the water. It's genius.
by a process called diffusion. as the blood in the gills contain less oxygen than the water outside, then the oxygen will diffuse through the plasma membrane as their is a concentration gradient. the same can be said for the carbon dioxide except it exits the gills. The larger the concentration gradient the quicker the rate of diffusion. the process can also be sped up by having a larger surface area to volume ratio. by having a larger surface area it is easier for the oxygen to diffuse across. this is why with many structures like the gills there may be groups of folds that increase the surface area. the oxygenated blood then flows to the rest of the body.
Mam, at the end,we see that the blood has 80% of oxygen.... No matter what the exchange mechanism be. Then why Nature chooses counter-current mechanism?
Mam, what would happen if the the fish is placed in an environment where the amount of dissolved oxygen is much lesser than the expected one, will they be able to carry out respiration by this mechanism or else they've adapted something else ?
Great question! Organisms (including humans and fish) can make some adjustments to deal with slightly lower oxygen levels, like producing more red blood cells, breathing more rapidly and increasing heart rate. This is how people can climb very high mountains; they gradually ascend higher and higher so their bodies have time to adjust. However, this ability depends on how rapidly you're dropped into a low oxygen environment. If someone opened the door of a plane, everyone would be hosed, but if you gradually lower the oxygen levels over a few weeks, it's doable. There's still risks; you can only make so many red blood cells before you're at risk of them making a "clog" your blood vessels and having a heart attack or stroke, and your heart rate can only get so high before your resting heart rate and your maximum heart rate are equal, so all you can do is rest. As for fish, this actually happens regularly in what are called "fish kills", which happen occasionally where I'm from. The oxygen level in the water drops suddenly, often because of a big sewage dump into the river, followed by a spike in bacteria that consume all the oxygen. The fish first go into distress; some leave the area, but others can't. They thrash around on the surface in circles for a few days, then suddenly the whole river surface is a giant carpet of thousands of dead fish. Gross. Hope this clarifies! Love from Boston. -BOGO
To be fair, even I don't explain quite like this in "real life". I scripted this video and made a plan for how to deliver it concisely and I also have the advantage of not being derailed by un-related questions, etc. You also can just talk straight through without having to wait for folks to write stuff down because folks who are watching can just pause the video! Sending lots of love and best wishes from Boston! -BOGO
I will work on that! My students often would say that I talk too fast, especially the kids who were learning english as a second language, so I was trying to slow down and speak very clearly!
this is perfect!! all of the other videos arent described well and they feel rushed. loved this
Thanks very much, Dragacron! I actually made this video back when I was teaching this same content because it was such a pain to try to draw this on the board. And yes, please show this to your teacher and classmates; I hope it's helpful! Do you have suggestions for future videos?
Thanks very much, Dragacron! I actually made this video back when I was teaching this same content because it was such a pain to try to draw this on the board. And yes, please show this to your teacher and classmates; I hope it's helpful! Do you have suggestions for future videos?
Thanks very much, Dragacron! I actually made this video back when I was teaching this same content because it was such a pain to try to draw this on the board. And yes, please show this to your teacher and classmates; I hope it's helpful! Do you have suggestions for future videos?
It has an operculum on both sides on its body which protects the gill slits . When the fish opens its mouth ,water flow into the area called the buccal cavity The fish needs to push the water over its gills and then out of the operculum in order to extract the oxygen and remove the carbon dioxide from the tissue . To do this , the fish first close its mouth ,when it does this , the water is pushed out of the operculum opening over the gills and back to the water . As the water moves over the gills on its way out of the operculum the oxygen is extracted and moved into the fish’s blood stream and carbon dioxide is removed . -this is the notes I took
ahhh now it makes sense. i had the worst time trying to make sense of counter current flow but thanks so much for the clearly descriptive video!
This is the video I've been looking for!
Thanks, Michał! Glad it was helpful. Sending (sanitized) love and best wishes from Boston! -BOGO
Well explained...thank u soo much for the video .💗
This really helps me, thank you so much for the explanation!
Glad it helped, Gina!
Thank you very much 🙏 I’ve been searching for this and I finally understood by watching your vid
Glad it helped, Häžleè! Sending love from Boston! -BOGO
Loved it! I was wondering whether the fish next door to the fish that was breathing would have enough oxygen after fish 1 took it but you answered my question in the video. Fish need 100% oxygen though humans would die if they breath 100% oxygen... intersting.
thank you AMAZING video now i get it :))) im from australia
Im from canada
Nice, and clear explanation 😊❤️
this is wonderful thank you so much!
Glad it was helpful, Cait! Come back any time
But why does the fish need to close its mouth for the gaseous exchange to occur?
best video ever - thank u
Thanks, Ramya! Glad to hear it was helpful, I had fun making it! Please share with classmates, if you think they might also find it useful. Sending love from Boston! -BOGO
how exactly does the fish's blood extract the water's oxygen? What does that look like? Figuratively speaking, is it like a hand in the blood that reaches into the water flowing by, pokes around super quick for some oxygen in the water, then grabs it and tucks it into its pocket, so to speak? Seriously, I'd love to know exactly how the blood apprehends the oxygen in the water. It's genius.
by a process called diffusion. as the blood in the gills contain less oxygen than the water outside, then the oxygen will diffuse through the plasma membrane as their is a concentration gradient. the same can be said for the carbon dioxide except it exits the gills. The larger the concentration gradient the quicker the rate of diffusion. the process can also be sped up by having a larger surface area to volume ratio. by having a larger surface area it is easier for the oxygen to diffuse across. this is why with many structures like the gills there may be groups of folds that increase the surface area. the oxygenated blood then flows to the rest of the body.
Woooooooow easy & clear ❤
Wow good job....
I'm from INDIA.
Appreciate the efforts, thanks mam
Thanks, Sarika! Sending love and best wishes from Boston! -BOGO
lovely vid
Thanks very much! Stop by and "visit" any time!
Thanks, great video.
Thanks very much! Come back any time!
Appreciate the efforts! Great explanation :)
Excellent work
Thank you! I've always wanted to be congratulated by a president, ha!
Amazing work
Thanks, Puneet! Sending love and best wishes from Boston! -BOGO
Its helped me to ace in my sessional exam
Love from india
Mam, concurrent mechanism can be useful if the speed of water is more or less than that of blood,but never equal??
Mam, at the end,we see that the blood has 80% of oxygen.... No matter what the exchange mechanism be. Then why Nature chooses counter-current mechanism?
Mam, what would happen if the the fish is placed in an environment where the amount of dissolved oxygen is much lesser than the expected one, will they be able to carry out respiration by this mechanism or else they've adapted something else ?
Great question! Organisms (including humans and fish) can make some adjustments to deal with slightly lower oxygen levels, like producing more red blood cells, breathing more rapidly and increasing heart rate. This is how people can climb very high mountains; they gradually ascend higher and higher so their bodies have time to adjust. However, this ability depends on how rapidly you're dropped into a low oxygen environment. If someone opened the door of a plane, everyone would be hosed, but if you gradually lower the oxygen levels over a few weeks, it's doable. There's still risks; you can only make so many red blood cells before you're at risk of them making a "clog" your blood vessels and having a heart attack or stroke, and your heart rate can only get so high before your resting heart rate and your maximum heart rate are equal, so all you can do is rest.
As for fish, this actually happens regularly in what are called "fish kills", which happen occasionally where I'm from. The oxygen level in the water drops suddenly, often because of a big sewage dump into the river, followed by a spike in bacteria that consume all the oxygen. The fish first go into distress; some leave the area, but others can't. They thrash around on the surface in circles for a few days, then suddenly the whole river surface is a giant carpet of thousands of dead fish. Gross.
Hope this clarifies! Love from Boston. -BOGO
@@BOGObiology I had the same confusion but you cleared it all! Thankyou smmm for saving me from failing my test!! :)
Thank you!! This video is really helpful
Thank you, Grace!
Thank you for your explanation, It is very helpful :D 😊😊
Thanks, Ardelia! Stay safe out there!
Thank you!
You are very welcome!
Why can’t my bio professor explain things like this 😩
To be fair, even I don't explain quite like this in "real life". I scripted this video and made a plan for how to deliver it concisely and I also have the advantage of not being derailed by un-related questions, etc. You also can just talk straight through without having to wait for folks to write stuff down because folks who are watching can just pause the video! Sending lots of love and best wishes from Boston! -BOGO
Thank you! I!
You're welcome!
Thanks👍
You're very welcome!
Tysm !!!
Pog
I hate biology just let me finish highschool geez
5:07
This was really helpful, However I had to speed up this video in order for me not to get irritated by how slow shes talking
I will work on that! My students often would say that I talk too fast, especially the kids who were learning english as a second language, so I was trying to slow down and speak very clearly!
there's something call the playback options.