spirometer trace AS OCR Biology WHS

spirometer trace AS OCR Biology WHS

[yasminh]

I never knew that the soda lime was why the line started going down, always found that odd, thank u sm!

[abdulf]

just waiting for the "who's watching in quarantine?" comments

[rivavaughan]

The trace goes down as the oxygen gets used up...the amount of CO2 never decreases...though it is absorbed of course by the soda lime ...so doesn't affect oxygen volumes which can be measured ...i.e. consumption of O2 in dm3 per minute

[biowhs]

Brave teacher saying a textbook is wrong, not sure which book either as there are a few for the course! All I can say is that as you breath in (inspiration) your lung volume increases the spirometer volume decreases. If you take an extra deep breath in the spirometer will continue to decrease (inspiratory reserve volume).

[rachealf]

Great vid, one question, my biology teachers told us the ocr biology text book is wrong and inspiratory reserve volume and expiratory reserve volume is the opposite on the spirometer trace, confused. Thanks

[thecuriousgorilla]

That tree on the poster at the beginning of the video is the conservative party logo. Is this subtle Tory propaganda?

[malanhemal]

you can use the same method for CO2, to calculate O2 right ?

[zeeshitbag]

Can you do more unit 1 vids pleaaasseee
Theres not enoupgh as bio ocr content on you tube
Thanks
If you cant jus let me know at least :)

[zuhaibehsan]

hey, when calculating co2 absorbed do u find the area of the triangle?

[laurachoi]

Hello, great video! I don't get why you need a "counterbalance", was it to ensure a tidal volume or something?