Haemoglobin (oxygen dissociation curve, Bohr effect, adaptations)

Haemoglobin (oxygen dissociation curve, Bohr effect, adaptations) | A Level Biology

Рет қаралды 204,655

4 жыл бұрын

www.biologywitholivia.co.uk
Tailored to the AQA specification, covering all spec points:
- The haemoglobins are a group of chemically similar molecules found in many different organisms
- Haemoglobin is a protein with a quaternary structure
- The role of haemoglobin and red blood cells in the transport of oxygen
- The loading, transport and unloading of oxygen in relation to the oxyhaemoglobin dissociation curve
- The cooperative nature of oxygen binding to show that the change
in shape of haemoglobin caused by binding of the first
oxygens makes the binding of further oxygens easier
- The effects of carbon dioxide concentration on the dissociation of
oxyhaemoglobin (the Bohr effect)
- Many animals are adapted to their environment by possessing different types of haemoglobin with different oxygen transport properties
Also relevant for OCR, Edexcel, CAIE, etc.

Пікірлер: 108

@Z7.8 2 жыл бұрын

How can u summaries a 45-minute lecture in 7 minutes: Amazing, W0W

@rebeccawills6220 4 жыл бұрын

I takes me ages usually to simplify things and make things concise, you have saved me so much time thank you :)

@biologywitholivia 4 жыл бұрын

Thanks so much Rebecca, so pleased to hear it's helped you!

@melina8824 Жыл бұрын

YOU HAVE NO IDEA HOW MUCH THIS HELPED ME. YOU PROVIDED A COMMON BIOLOGY AS MENTAL BRAKEDOWN THANK YOU. FR.

@lofells_80s97 2 жыл бұрын

I spent 5 lessons on this at school and yet this 7 minutes video is what it took to finally make me understand it. Thank you so much!

@duncanl9135 3 жыл бұрын

Im in my 2nd studying biology at university and you explained this concept in 7 minutes better than my prof did in 20 haha, thank you !!

@lucabarriere7233 Жыл бұрын

Yeh only did it in 7mins cause she speed running

@krishakrishna4484 Ай бұрын

Bro ur in uni doing this shit. And in our A levels (AS) this is in the syllabus

@wonderboyug3084 Жыл бұрын

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@mohandforstudying1886 2 жыл бұрын

Every time I see this video I find it more and more beneficial I even have linked it in my notes!!, thank you so much for this masterpiece 👏🏻

@saminaijaz3917 2 жыл бұрын

Thank you so much. This is actually a great explanation and a clear cut one. You didn't discuss anything that was not related to this topic💖💖

@dungukassim1152 2 жыл бұрын

Never found better explanation. Thanks a lot.

@kpormegbeayamdoxa4774 2 жыл бұрын

Am from Ghana, amazing video by all standard

@DuckTapeWarrior1 2 жыл бұрын

Thank you for this video! I’m studying for my Ichthyology final and this definitely helped!

@ixumiedits 3 жыл бұрын

You made it really easier to understand. Thanks for the video.

@sweetie1208 Жыл бұрын

Thank you so much for explaining it in a simple and comprehensive way

@shazz0379 3 жыл бұрын

This is the best video on the topic. Thank you so much.

@millykunda4537 3 жыл бұрын

The most perfect explanation ever 🙌❤

@Definitely_Not_Kevin Ай бұрын

so so useful, thank you so much!! I don't normally watxh videos as they drag on and are too solw. But you stick to what i need to know, keep it simple but interesting and explain it really well. Thank you!!

@NAMUSOKEMARYGORRETH-gv3wv Жыл бұрын

You have explained this concept very well and ive understood it.thank you💯

@vanshikakardam3777 3 жыл бұрын

Hey! I'm from india and u are such a great way of explaining. Really a loads of love your work💕❤

@AsifHussain-ie1kg 3 жыл бұрын

Angel descended from heaven to our A levels 😍😍

@connieforbes6212 3 жыл бұрын

you are a literal life saver. thanks so much

@tamannagupta5326 2 жыл бұрын

Thankyou soooo much Olivia I have been struggling with this right and left shift of the curve concept for so long but you made it so easy to understand. Lots n lots of love from India 🇮🇳🇮🇳❤️❤️

@sylvesterbronney6642 3 жыл бұрын

I like the animation accompanied with the lesson. Thanks!

@zeon2535 2 жыл бұрын

Honestly an amazing video, keep making such quality content

@tgnurlisa 3 жыл бұрын

you are amazing. love your explanation (and ur accent!)

@suprimshrestha6184 3 ай бұрын

this was really really helpful! thank you for doing it!

@darshinimalukar3246 2 жыл бұрын

Amazing video, thank you!

@tarahclue6737 2 жыл бұрын

Thank you very much for your clear explanation

@SushilSharma-td3sp 3 жыл бұрын

I love your way of teaching too much,,, Please keep it up,,, God bless you,,, * Dr Sushil Sharma...

@Ahmad-ik8kk 3 жыл бұрын

Thank you so much this has helped so much🙏

@hafsa8891 3 жыл бұрын

Thank you so much this was so useful!

@SuhasandSahitiGK 4 жыл бұрын

Very useful..want more information like this

@emilyhull9963 Жыл бұрын

Thank you for this video it helped so much!!

@abdoallahalsalh9590 2 жыл бұрын

شكراً على الشرح 💙

@yusufgilgil2893 2 жыл бұрын

This was the best explanation .Ty

@emmaquigley7611 3 жыл бұрын

I have never understood the Bohr effect until now, this was so helpful thank you so much

@quickmaths1102 3 жыл бұрын

thanks! Much appreciated

@Thunderstorm.73 2 жыл бұрын

Very good explanation. Thank you so much 🥰🥰

@drmanojgupta61 Жыл бұрын

Very cool and clear concepts

@user-zo7bm1fg9s 9 ай бұрын

It took me hours trying to understand without you and I don't know ❤❤

@maidagulnurlankyzy7435 2 жыл бұрын

THANK YOU ONE OF THE BEST VIDEOS

@jahangirkhaan 2 жыл бұрын

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@WASHIM9 Жыл бұрын

Wow that is amazing 😍। My all concepts Clear tq, ম্যাম ❤

@sabrinaadrian5515 2 жыл бұрын

thank you this helped me understand so much :)

@ridaakram389 3 жыл бұрын

You're awesome! Subscribed!

@prakashraj1103 2 жыл бұрын

This video is helpful for ours 😃 thankyou

@zenitsuwillalwaysreply20 3 жыл бұрын

thank you so much!

@mahmoudzaky8712 Жыл бұрын

great video and explination!

@keremtheturk9199 7 ай бұрын

You explained this very well, thank you so much

@j0m4n4 11 ай бұрын

so helpful, thank you

@dewaryaneet3974 2 жыл бұрын

Thanks for it.

@nicolevlogs-xoxo2755 2 жыл бұрын

Very helpful!!

@ayshakhatun00 2 жыл бұрын

Best explanation ever

@shafaqsayd992 2 жыл бұрын

Thank u!❤️❤️ its really did helped me

@muhammadhassanat6176 8 ай бұрын

Great! Left no question to ask. ❤Kudos.

@yasminh Ай бұрын

ty!

@ffion420 Жыл бұрын

thank you 🙏🙏🙏

@milliedoyle3093 2 жыл бұрын

v. helpful thanks

@kingsushie8173 3 жыл бұрын

thank u so much aaaa !!

@user-zg6if8ci4j 2 жыл бұрын

Omg u literally saved me tysm!!!!!

@donaalapatt5621 3 жыл бұрын

Thanks a lot🤩🤩

@ritikasrivastava3840 2 жыл бұрын

thankyou so so so much :) pls explain haldane effect similarly

@user-sq7jp7ie4g 8 ай бұрын

It was amazing

@kafkas6325 Жыл бұрын

harika anlattı tebrikler

@mirandafaycolasanti5232 Жыл бұрын

thank you so much you are so clear love u ❤❤❤❤❤❤

@alaaamr7351 3 жыл бұрын

Thank you

@blankaszewczyk6040 8 ай бұрын

Thank youuuu ❤

@sangeethak.s1411 2 жыл бұрын

Excellent

@lahmyusuf8898 2 жыл бұрын

Understood under 7 minutes before going to write my exam thanks

@MA-wk4kk 2 жыл бұрын

Hi thats a perfect video with super explaining but got confuse if u can explain plz left shift u mention has more affinity at lower oxygen pressure it isnt be at hight oxygen pressure

@saad-bc1by 3 жыл бұрын

This is amazing. Is there any way I can access more videos like this

@jamiek8603 3 жыл бұрын

the rest of her channel u spanner

@stephanevuchinic4537 2 жыл бұрын

@@jamiek8603 lmaoo

@noorulemaan176 2 жыл бұрын

Lots of love ma'am

@ashwin9774 Жыл бұрын

thank you very much you saved my exam. been seeing all ur videos. kinda curious how u draw and write with that mouse accurately. because I'm trynna teach some primary students with my computer. that would be helpful if u share some information on how u create interesting videos. thank you.!

@pulkitverma8104 Жыл бұрын

Best ❤️

@sherbetstraw8605 2 жыл бұрын

that was soooooooooo good

@alvinnicholas255 2 жыл бұрын

You and your voice both are cute....so sweet way of explaining 🙂😀

@bilalbangash7731 2 жыл бұрын

always remember that Hemoglobin does not usually fancy Oxygen but oxygen just wants free rides. It helped me to an extent

@utj9559 2 жыл бұрын

Thank u

@juanpablobecerrarozo1262 2 жыл бұрын

Stunning video, But you whats more Stunning? Que Gabriel Cortnita no ha llegado en el vuelo de las nueve y cuarenta y siete de Londres :D

@hpottergirl317 2 жыл бұрын

Can we get a PDF of the sessions please

@roseflamingo9965 2 жыл бұрын

Hi, are you going to be making anymore videos like this?

@anishaferdous8360 4 жыл бұрын

Very useful video !

@biologywitholivia 4 жыл бұрын

Thank you Anisha, glad it helped!

@evierussell6463 4 жыл бұрын

This has helped me a lot to understand Thankyou!

@biologywitholivia 4 жыл бұрын

@@evierussell6463 Great to hear, let me know if you have any questions!

@mayajohnson7172 Жыл бұрын

Thank you so much for this concise and easily digestible explanation. I will let you know how will I do on my exam next week.

@kingsushie8173 3 жыл бұрын

please upload more videos

@esotericmedic2841 2 жыл бұрын

Notes Hb= protein with quaternary structure found in RBCs whose job it is to transport O2 around body. O2+ Hb= oxyhemoglobin. At high Pp O2 (ie: Lungs)= high affinity for O2 so loads. At low PP O2 (ie: respiring tissues)= low affinity for O2 so unloads. Graph S-shaped due to initial co-operative bonding, but eventually becomes harder as Hb becomes saturated. CO2- Bohr effect- Curve shifts right lowering affinity for O2 as pH increases causing Hb to change shape (respiring tissues). Left shift = higher affinity, loads O2 in lungs at lower O2, good for low O2 environments, foetus etc. Right shift- lower affinity, more O2 unloaded at tissue, good for organisms with high metabolic rate.

@harshjw1874 3 жыл бұрын

Why are we ignoring their effect in lungs during right shift and in tissue during left shift . Because ultimately it will be difference in saturation of hb that will hive amount of O2 used by tissue

@hamdahkamali110 3 жыл бұрын

god bless u

@itsdharun 2 жыл бұрын

CAN U PLS EXPLAIN WHAT HAPPENS ALTITUDE INCREASES?

@rdwaldsaxe-coburg666 3 жыл бұрын

So when you see Ant prophylaxis ,exchanging food & 02, or GLOBULAR O2

@AmoURpf 2 жыл бұрын

👍👍👍

@shanthala1345 Жыл бұрын

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@alphaspace8963 Жыл бұрын

Waw 🌹

@MA-wk4kk 2 жыл бұрын

I mean at 5:35

@jasmansangha487 2 ай бұрын

oxygen dissociation curve does not peak at 100% it peaks at around 95%.

@Subject-B29gaming 3 жыл бұрын

%saturation of Hb can never be 100%

@qasimlbhai9603 2 жыл бұрын

She could be a millionaire if there was an option for getting money everytime she said oxygen.

@johnsina1303 Жыл бұрын

hey ;) x

@samward8840 Жыл бұрын

you just said haemoglobin changes shape to make it easier for oxygen to bind, now your saying haemoglobin changes shape to make it harder to bind??????????????

@CalumsReptiles Жыл бұрын

Haemoglobin has four haem groups, so 4 oxygen molecules can bind to each haemoglobin molecule. Once the first oxygen molecule binds, it becomes easier for the next three to bind. However, once 4 oxygen molecules have bound to haemoglobin, there is no ‘space’ for a 5th oxygen molecule to bind, so it becomes harder for more oxygen to bind