AS Biology - Oxygen dissociation curve (OCR A Chapter 8.4)

The oxygen dissociation curve shows how haemoglobin binds to oxygen (that's it really!). Its sigmoid shape shows haemoglobin's positive cooperativity behaviour. We can then look at the curve when the haemoglobin is in different situations (Bohr effect) or even as a different type of haemoglobin (fetal vs. adult), which show us if the haemoglobin is ready to bind to oxygen or to lose it.
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who would dislike, there's literally no simpler way of explaining

[@judesliggoo]

I learnt more from this than a two hour lecture 💕 thank you so much!

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class 11...
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Great to see you active again nearing exam season by the day!!!! :(

[@BioRach]

Haha it's a busy life but will try! Thanks for watching :)

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[@BioRach]

Glad you found it helpful! Thanks for watching :)

[@naheedmirza6569]

Excellent explanation thank you!

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[@BioRach]

Glad to be of help :) Thanks for watching!

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[@BioRach]

Glad you find that helpful! Thanks for watching :)

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Completely helpful! Awesome

[@BioRach]

Glad you found it helpful! Thanks for watching :D

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subtitles at 6:12 pahahah

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LMFAOO

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[@BioRach]

Glad you found it helpful! Thanks for watching :)

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Very helpful indeed 👌

[@janafarag3351]

thank you ! very well explained.

[@zahraareeves2408]

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[@BioRach]

Haha thanks for watching! :)

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[@rahh8222]

hey would it be wrong if i said for anaerobic respiration instead of aerobic respiration

[@aafsariqbal6353]

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[@BioRach]

Glad you're enjoying the videos! Thanks for watching :)

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hello miss, not related to video but what pens do you use?

[@lmj9517]

and all that Biology!

[@bambobee7326]

Why is the line for the ODC from b to c so steep? Isn’t it harder for the 4th oxygen molecule to bond to Hb after the 3rd. So shouldn’t it be flatter?

[@charlottefern386]

i think b represents the whole upwards bit of the curve not just that exact point

[@kelisa4894]

what does 'shifting to the right/left' mean??

[@rosieosabutey1448]

That one person that disliked. I-

[@BioRach]

XD

[@enacausmembrane]

Thank You for this explanation, I finally got it.
Allahu Akbar, Free Palestine.

[@greatehien1398]

Correction the hb in the tissue is called deoxy hb. Not oxy

[@Sara-sc6nm]

thank you for your revision videos - they are very helpful!!
i just wanted to say that there is correction needed when you say that c is where haemoglobin is fully saturated. this rarely happens as blood is fast flowing and most haem group are already occupied therefore its very difficult for oxygen to bind to the last haem group

[@BioRach]

Absolutely! In reality that is spot on, thanks for adding this on :)

[@joannadaniel9396]

thank you !

[@rabihanasir315]

This video helped me sooo much (eventhough I do AQA Biology)