Also, just wanted to say the detail you go into with your videos is quite unique something that's very valuable to us students so please don't sacrifice that for shorter videos in the future. I really don't mind your videos being longer than the average revision video since you provide so much more clearer detail and depth :)
@@alexfinch9762 yep aqa. Generally went better than I expected. Was predicted an A* in bio but think I'm probably going to get an A(hopefully). Got my last bio paper tomorrow just hoping the essay doesn't kill me
I was struggling so much with all these concepts. In the textbook and notes it was in three different sections, I'm just sat there going back and forth trying to figure out where the connection is. Was stressing because of exam next week. Omd my brain was drowning and you officially just saved me!! Your flow of explanation is amazing. It makes all sense now. Thank you so much!!
I am writing my A level exam this year and i have to show so much gratitude for this video. it has really helped me. If you were my bio teacher, an A* would be the only possible grade. Thank you so much.
The best explanation hands down! loved how you took your time to repeat the concepts, write them down. Absolutely brilliant. Good that you in such wonderful depths! just discovered you and liked and subscribed. Please tell me you have a channel for Physics and Chem too?
I'm happy you found our channel helpful. We do have a Physics channel run by the Physics teachers here (LSC Physics) and a Chemistry channel (LSC Chemistry), but the Chemistry channel is still in early stages of development.
you literally saved my life, have a test on homeostasis tomorrow and didn't understand osmoregulation at all until now. thank you for making this video
i literally have my biology a level paper 2 tomorrow morning (its 11:12pm) and this has just saved me if the kidneys come up!! Thank you so much plus i like the long vids
THANK YOUUUU , I never thought I would understand the kidneys but your video proved otherwise! It was definitely not too slow for someone learning it for the first time .
this is so similar to the amount of detail I need for my exam and anything minor missing I've been able to recall while watching this was so helpful I'm so glad I found this channel at the start of A2
Thank you a million times over. Honestly i'm beyond grateful for your channel and most importantly this video. I'm so glad i wasn't put off by the 31 minutes 39secs. Being impatient i just increased the speed of your video to 1.5. Your teaching style is impeccable. God bless you. Such clarity. I'm speechless. You've just gained a subscriber x
Such a detailed and good revision video! don't make them shorter, the detail you go into I believe it's valuable and vital for the knowledge of the topic and chapter. Thank you!
Thanks for explaining, i think you also need to add that in selective reabsorption the cell which Na+ leaves is called ' Cuboidal epithelial cell'. You can be asked in exam about the name of the cell
Just discovered your videos and I love them already. They're great for consolidation and clarification. I've been watching the video on 1.25 and 1.5 speeds but it doesn't bother me the speed you go since different people will like different paces. Keep up the amazing work!
I am currently studying A level biology. And I have to say this video is the best. It describes the functions in such detail and hits all the mark points. You should be very proud and please don’t sacrifice this detail by making shorter videos. Keep up the good work 👍
HAAAA!! My favorite part of the video is the awkwardness @ 13:40-13:45. The look he gives the camera, as if someone he cared for watched him drop the marker cap. Dr. Bhavsar.. I thoroughly enjoyed this small lecture. You are as handsome as you are awkward. I can imagine you studying to master this information. :)
Hi, thanks for the amazing video! So once the sodium ions are actively pumped out from the cell into the intercellular space, do they then diffuse into the capillary via simple diffusion? Also, are the Na and Cl ions that arrive at the descending limb after selective reabsorption has occurred from the filtrate? They're not the ions that got pumped out of the cell in selective reabsorption are they? Thanks!
you are a phenomenal teacher. a little bit too slow for me but i really enjoyed the video. it was very detailed and well explained. thanks for the help
+Micheal C well thanks for the feedback. This is how I do it. Luckily there are other channels where people go faster. I get that as the exams come closer my videos do seem long.
ok, i dont know where to start but this has been such an amazing video omg! i am an a level student and i found this topic to be such a pain to learn. but after watching this video, i can truly say that i have understood everythingggg! Thank you soooooooooooooo much! it is truly appreciated!
Hello Dr,that was a clear and perfect explanation from you.this helps me to understand the concept more easily.Really appreciate it.Thanks a lot Dr :).
It's a great video that really helped me, thank you! Just one question, what is the role of the distal condoluted tubeal at the end just before the collecting duct?
thank you so much i really appreciate it, if it wasnt for this video I wouldnt understand it (ive tried so many other resources and this is the only one that really seemed to work)
Oh my dayss this video is amazing!!! Keep up the good content im grateful u made this, i was struggling with this topic but now it all makes sense after you broke it down! Thank you! Subscribed!
Just wondering at 28:30 as Na and Cl ions low water potential, when water leaves descending limb via osmosis shouldn't the Na and Cl be reabsorbed to allow the H2O to diffuse out?
Thank you I find this so so helpful!! Just one question, in my OCR A2 Biology book it says that the sodium and chloride ions diffuse into the descending limb of the loop of Henle? It has confused me since you have stated they would not do this as it is counter productive, not sure if there is an explanation for this? Thanks again
+Amy May Pointer No special explanation. I did some research and couldn't find anywhere that said those ions move back into the descending limb. Just an error in the textbook. Ignore it.
you simply cannot ignore something that is repeatedly emphasised on the page that would be counter productive to my own revision. It talks about the base of the the tubule having a low water potential due to firstly H20 moving out via osmosis and then it adds as a second point that the water potential decreases due to Na Cl diffusing into the tubule. I know OCR make plenty of mistakes however this would be a tragic one. Please double check if we need to know this detail? This has been a great video btw did not understand what happens in the PVT thanks a lot !
+ALI SHAH first: this has been checked. Second: I've never seen a question where the answer depended on this detail about re-entry of sodium and chloride. Third: the marks for this type question are always about understanding the principle that by lowering the water potential in the medulla (by pumping out of ions by the ascending limb) water moves out of loop of Henle by osmosis. Focus on that concept rather than the detail. That's my advice.
your video is brilliant but i would like you to include more details such as ( Reabsorbtion in the dista convoluted tubule ) and discuss ( Anti Duretic hormone ) but other than that is utterly brilliant
Hey, what happens to the Na ions during ultrafiltration after they've brought a glucose/amino acid into the tissue fluid? How comes they don't diffuse into the blood ?
Your videos on a level modules have really helped me have a good appreciation of the processes.. Thank you and I hope you make other vids to help other students ;) BTW I am doing my A2 level biology paper tommorow XD
So, is water passively reabsorbed in the PCT and the descending Loop of henle? And Vasopressin will induce passive reabsorption in the collecting ducts?
yes, but careful with that. it is true that water moves by osmosis from the filtrate into the blood from the PCT, from the LoH and the collecting duct. and yes that is passive. BUT, a lot active transport was required (in the PCT and LoH) to create the water potential gradients that allowed that passive movement. so the answer is kind of yes and no. but I hope you see why! good question!
Also, just wanted to say the detail you go into with your videos is quite unique something that's very valuable to us students so please don't sacrifice that for shorter videos in the future. I really don't mind your videos being longer than the average revision video since you provide so much more clearer detail and depth :)
Umme Waseem I agree
I agree too
I agree three
As a self study A level student, i was REALLY struggling to wrap my head around this and this video has made it all make sense! Thank you so much!!
+isabel bassett you're very welcome.
sameeeee
This is only UA-cam channel that explained this topic so clear and simplified. I really understood well.
happy to have helped!
Why did I find your channel the day before my exam. Wish I knew of your channel from first day of sixth form 🤭😅
You've saved my bio exam. Have exam in 13hrs and I realized I had forgotten everything about kidneys. Thnx a lot
Arsene Wenger same😂
ayo same
@@perseusreyes4223 spent 1 hour doing kidneys and nothing comes up on the exam. Just my luck
@@Mmp2001 how was it mate. are you aqa?
@@alexfinch9762 yep aqa. Generally went better than I expected. Was predicted an A* in bio but think I'm probably going to get an A(hopefully). Got my last bio paper tomorrow just hoping the essay doesn't kill me
I don’t need a text book, I just need your teaching videos. Thank You So Much!!
I was struggling so much with all these concepts. In the textbook and notes it was in three different sections, I'm just sat there going back and forth trying to figure out where the connection is. Was stressing because of exam next week. Omd my brain was drowning and you officially just saved me!! Your flow of explanation is amazing. It makes all sense now. Thank you so much!!
My exam is in a week and this is the only video that has made any sense to me. Thank you so much :)
+Naomi Lee - Hargreaves Glad you found it useful.
I am writing my A level exam this year and i have to show so much gratitude for this video. it has really helped me. If you were my bio teacher, an A* would be the only possible grade. Thank you so much.
Thank you for your comments but it’s always you guys that earn your grades through hard work. Keep going and good luck!
The best explanation hands down! loved how you took your time to repeat the concepts, write them down. Absolutely brilliant. Good that you in such wonderful depths! just discovered you and liked and subscribed.
Please tell me you have a channel for Physics and Chem too?
I'm happy you found our channel helpful. We do have a Physics channel run by the Physics teachers here (LSC Physics) and a Chemistry channel (LSC Chemistry), but the Chemistry channel is still in early stages of development.
I always come back to this video before exams. Its been such a massive help throughout the year. Thank you so much
you are a saint! thank you so much, 1 day away from my exam and you have saved my life thank you!
+Leah C. Good luck!
you literally saved my life, have a test on homeostasis tomorrow and didn't understand osmoregulation at all until now. thank you for making this video
First time I've understood this topic! Very helpful, thanks. Goodluck to all those doing F214 this week :)
i literally have my biology a level paper 2 tomorrow morning (its 11:12pm) and this has just saved me if the kidneys come up!! Thank you so much plus i like the long vids
Jenna O’Connor I have it too! Good luck for tomorrow! Here too for last min revision 😂😂
@cindyhu247 im not ready at all ahah thank you, good luck to you also aahah
Can't express how helpful this video was. Amazing video.
+sarath shaji thanks. Do check out similar videos on my channel on other topics.
THANK YOUUUU , I never thought I would understand the kidneys but your video proved otherwise! It was definitely not too slow for someone learning it for the first time .
+Nishat Hussain happy it helped. Good luck!
I am teaching myself at home, I don't go to college, and your videos are a very big help for me thank you very much.
+Zak Kharsane glad to hear it, and all the best with your study.
+Zak Kharsane glad to hear it, and all the best with your study.
13:42 The look he gives after xD
xD i noticed
this is so similar to the amount of detail I need for my exam and anything minor missing I've been able to recall while watching this was so helpful I'm so glad I found this channel at the start of A2
This was so so helpful!! Learnt more in half an hour than I did in 5 lessons! Thanks so much!!
Just came across this channel. Excellent work.
+sasorocks thanks! Do share it if you think others might also find it useful.
You can see a lot of effort was put into this! tqsm
Thank you a million times over. Honestly i'm beyond grateful for your channel and most importantly this video. I'm so glad i wasn't put off by the 31 minutes 39secs. Being impatient i just increased the speed of your video to 1.5. Your teaching style is impeccable. God bless you. Such clarity. I'm speechless. You've just gained a subscriber x
Yay! And very happy to help.
thanx great video I learn in Zimbabwe and I will recomend your videos to my friends much love from africa😊
+adie mamvuto wow, thanks!
You're seriously incredible! Best A-Level video I've seen on the topic! Thank youuu x
thank you so much for making this video! this has helped me so much with my upcoming A level exams
Such a detailed and good revision video! don't make them shorter, the detail you go into I believe it's valuable and vital for the knowledge of the topic and chapter. Thank you!
IF YOU ARE STRUGGLING WITH THIS UNIT, WATCH THIS VIDEO! ITS EXTREMELY USEFUL AND WORTH THE WATCH!!!!
I like ur videos very much thank u
HE EXPLAINS SO WEEELLL OMG GOD BLESS YOU AND THANK YOU FOR THESE AMAZING VIDEOS
Thanks for explaining, i think you also need to add that in selective reabsorption the cell which Na+ leaves is called ' Cuboidal epithelial cell'. You can be asked in exam about the name of the cell
Just discovered your videos and I love them already. They're great for consolidation and clarification.
I've been watching the video on 1.25 and 1.5 speeds but it doesn't bother me the speed you go since different people will like different paces.
Keep up the amazing work!
I am currently studying A level biology. And I have to say this video is the best. It describes the functions in such detail and hits all the mark points. You should be very proud and please don’t sacrifice this detail by making shorter videos.
Keep up the good work 👍
Amazing video. Explanations are clear and concise. Keep it up!
Excellent video, i was extremely confused when i read this topic in the book but your video cleared all my doubts. Thank you so much
Glad it was helpful!
HAAAA!! My favorite part of the video is the awkwardness @ 13:40-13:45. The look he gives the camera, as if someone he cared for watched him drop the marker cap. Dr. Bhavsar.. I thoroughly enjoyed this small lecture. You are as handsome as you are awkward.
I can imagine you studying to master this information. :)
Been struggling to learn the kidney but this video has done the job. really good.
Yay! thank you so much Sir. You're the real MVP
oh no i've only just discovered you before my third and final biology paper!! wish i'd watched these videos before the first two :(
One of the most helpful educational videos i have ever seen! Thank you so much, you really helped me understand this topic
Hi, thanks for the amazing video! So once the sodium ions are actively pumped out from the cell into the intercellular space, do they then diffuse into the capillary via simple diffusion? Also, are the Na and Cl ions that arrive at the descending limb after selective reabsorption has occurred from the filtrate? They're not the ions that got pumped out of the cell in selective reabsorption are they?
Thanks!
you are a phenomenal teacher. a little bit too slow for me but i really enjoyed the video. it was very detailed and well explained. thanks for the help
+Micheal C well thanks for the feedback. This is how I do it. Luckily there are other channels where people go faster. I get that as the exams come closer my videos do seem long.
You're a babe sir. Like I don't mean the wrong way but damn. This cleared all my doubts. You're genuinely very helpful.
+Apurvaa Boyampally thank you! We do our best to help.
CIE Biology exam tomorrow!! Great Revision! Thank you so much for making my life so easy
Thank you very much for this video. Very well explained and I have properly understood this for the first time.
thankyou SO much for this video, this is the only video that has finally helped me to understand the kidney!
thank you very very much, amazing explanation!
Thank you!
This is amazinggg! Never have i understood biology better!!! Thank you a billion!
Extremely useful, better than my teacher !
Found this incredibly useful for my revision! Thanks so much for a great resource
+Mark P you're welcome!
THIS IS THE BEST VIDEO IVE WATCHED BY FARRRR. THANKYOU SO MUCH
Thank you so much!! Your videos are so clear and make everything so easy to understand :) much appreciated!
+Aneesha Patel you're very welcome.
Very impressive explanation, diagram helped thoroughly! Keep producing more quality videos.
YOU'RE A LIFE SAVER THANK YOU
Thanks so much ! Much better then how my teacher has explained it, so thank you !
ok, i dont know where to start but this has been such an amazing video omg! i am an a level student and i found this topic to be such a pain to learn. but after watching this video, i can truly say that i have understood everythingggg! Thank you soooooooooooooo much! it is truly appreciated!
Thanks I’m just happy these videos are helping you guys!
You really make biology easy! Please keep going on.
thank you so much! i really appreciate the amount of detail you went into, really saved me for my exams
This is explained perfectly!!!!! ❤️ Thank you very much!!!
+Amber Riley thanks!
Thank you so much for this video. Love how you explain everything ss it's really helpful when I understand the entire system. Thank you once again x
Hello Dr,that was a clear and perfect explanation from you.this helps me to understand the concept more easily.Really appreciate it.Thanks a lot Dr :).
You're most welcome
That was so clear, you really helped me to understand this! Thank you so much.
amazing video, thanks for giving your time!
Excellent video, wish I discovered it sooner!!
This vid cleared any misconceptions I had abt this topic, thanks so much!
Great video, always useful when I revisit the topic so thank you
Glad it was helpful!
This was awesomeee thank you very very much. May blessings come your way
Ooo I love blessings! Thanks!
Please don't speed things up, when you go over it slowly and even recap at the ending it always helps me get a better understanding in greater depth.
Great explanation! I don't mind the extra information at all.
Thank you!
This was very helpful I learn from diagrams so it was really easy to understand. Thx
Glad it helped!
Your videos are brilliant, thank you so much for explaining everything so clearly. Ilook forward to more A2 videos :)
Happy to help. Photosynthesis video coming soon.
+LSC Biology Awesome!!! I would really appreciate a good explanation on that topic
sent from heaven 👌🏽😭
+Jerrin thanks! (And good luck!)
thank you so so much! your teaching method is amazing
Glad it was helpful!
you r e best teacher ever
It's a great video that really helped me, thank you! Just one question, what is the role of the distal condoluted tubeal at the end just before the collecting duct?
Never one to comment usually but this video is super amazing and helpful. Thanks a lot!
Aw thanks Maryum. Do check out my other videos and ideas for new content are always appreciated.
your a literal life saver good sir , thank you
I also noticed you didn’t give much of an explanation on disal covoluted tubule. Is its function similar to proximal convoluted tubule?
thank you so much i really appreciate it, if it wasnt for this video I wouldnt understand it (ive tried so many other resources and this is the only one that really seemed to work)
+Bannanabum man I'm happy you found it useful. More videos like this on my channel. Good luck with your exams.
Dr bhavsarrrr, I can’t thank you enough
This is the best video ever thank you soooo much
Very good video, shame you didn't cover the distal convoluted tubule and collecting duct, thanks for your help Dr saab
this video was so helpful! helped me understand everything so simply and make really good notes, thank you so much!
Brilliant video really helped me a lot- thank you
Oh my dayss this video is amazing!!! Keep up the good content im grateful u made this, i was struggling with this topic but now it all makes sense after you broke it down! Thank you! Subscribed!
Good to know thanks. Hope you find my other videos useful too.
@@LSCBiology do you do chemistry videos by any chance?
I don't. If I had time (and the teaching expertise) I would!
@@LSCBiology oh fair enough thanks👍
Really well explained, its a lot simpler to think about now
+xBabylon4 Gamers happy to help!
Just wondering at 28:30 as Na and Cl ions low water potential, when water leaves descending limb via osmosis shouldn't the Na and Cl be reabsorbed to allow the H2O to diffuse out?
Thank you I find this so so helpful!! Just one question, in my OCR A2 Biology book it says that the sodium and chloride ions diffuse into the descending limb of the loop of Henle? It has confused me since you have stated they would not do this as it is counter productive, not sure if there is an explanation for this? Thanks again
+Amy May Pointer No special explanation. I did some research and couldn't find anywhere that said those ions move back into the descending limb. Just an error in the textbook. Ignore it.
Okay, thank you again for the video you have made it really simple and easy to understand I feel so much more comfortable with the topic now!!
+Amy May Pointer coolio.
you simply cannot ignore something that is repeatedly emphasised on the page that would be counter productive to my own revision. It talks about the base of the the tubule having a low water potential due to firstly H20 moving out via osmosis and then it adds as a second point that the water potential decreases due to Na Cl diffusing into the tubule. I know OCR make plenty of mistakes however this would be a tragic one. Please double check if we need to know this detail? This has been a great video btw did not understand what happens in the PVT thanks a lot !
+ALI SHAH first: this has been checked. Second: I've never seen a question where the answer depended on this detail about re-entry of sodium and chloride. Third: the marks for this type question are always about understanding the principle that by lowering the water potential in the medulla (by pumping out of ions by the ascending limb) water moves out of loop of Henle by osmosis. Focus on that concept rather than the detail. That's my advice.
your video is brilliant but i would like you to include more details such as ( Reabsorbtion in the dista convoluted tubule ) and discuss ( Anti Duretic hormone ) but other than that is utterly brilliant
+Anwar Hatem Ok I'll make a note of that and if there's time before exams I'll revisit this topic and include that. Feedback appreciated, thanks!
This video was really helpful. Thank you
I love ur teaching, but pls in ur next video could go into more details, I actually don't mind the long time.
thanks! in that case I think you'll like my new series of videos: ua-cam.com/play/PLQR2uBWlxskD1VO4Kv5GYyiw-4pyVyKxU.html
Thank you very much sir I understood eveything!!!very good videos
Excellent explanation!! You should have explained the processes in distal convulated tubule as well.
+Humayra agreed. But that is easy researched, nothing too complicated.
Yeah that's right. But your explanation was too good. So, I thought that it would be better if you had explained it.
+Humayra I will make a note of that for the reboot. Thanks!
Thanks a lot!
Hey, what happens to the Na ions during ultrafiltration after they've brought a glucose/amino acid into the tissue fluid? How comes they don't diffuse into the blood ?
Your videos on a level modules have really helped me have a good appreciation of the processes.. Thank you and I hope you make other vids to help other students ;) BTW I am doing my A2 level biology paper tommorow XD
Thank u for your great explanations
makes a lot of sense. that was really helpful thank very much !
Very insightful video!
So, is water passively reabsorbed in the PCT and the descending Loop of henle? And Vasopressin will induce passive reabsorption in the collecting ducts?
yes, but careful with that. it is true that water moves by osmosis from the filtrate into the blood from the PCT, from the LoH and the collecting duct. and yes that is passive. BUT, a lot active transport was required (in the PCT and LoH) to create the water potential gradients that allowed that passive movement. so the answer is kind of yes and no. but I hope you see why! good question!
Perfectly explained, thank you!