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

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im a student studying in india in cbse... class 11... this is too useful for me ... thank you...

[@judesliggoo]

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

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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 :)

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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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Love your videos!! They’re so clear and straight to the point. Thank you x

[@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 :)

[@basimajawaid9447]

perfect explanation

[@michaeljulius7938]

Great job

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thank you 🥰

[@sarojinibeharry928]

Completely helpful! Awesome

[@BioRach]

Glad you found it helpful! Thanks for watching :D

[@rabihanasir315]

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

[@Crackheads305]

I finally understood.thank u

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thank you !

[@Sara12840]

this was so helpful thank you so much

[@ay7565]

Super helpful thank you so much

[@BioRach]

Glad you found it helpful! Thanks for watching :)

[@vickydawn7476]

Very helpful indeed 👌

[@zahraareeves2408]

This is so helpful! I do edexcel but this is very well explained. Thank you :)

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Amazing! Very helpful videos!!!

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thank you ! very well explained.

[@rahh8222]

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

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[@BioRach]

Haha thanks for watching! :)

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

[@alizehzaib109]

extrmely helpful

[@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

[@aafsariqbal6353]

Thank u for this ^^

[@BioRach]

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

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Thank u for ur video ☺️😗

[@lmj9517]

and all that Biology!

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subtitles at 6:12 pahahah

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LMFAOO

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

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That one person that disliked. I-

[@BioRach]

XD

[@greatehien1398]

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