Human GAS EXCHANGE SYSTEM - A level Biology. Learn the structures, ventilation and gas exchange.

[@kanijakhtar6960]

Thanks for the visualizations and explaination. I understood very clearly.

[@MissEstruchBiology]

You're welcome, really pleased it helped you to understand

[@mrs.khair-un-nisa9431]

Thanks for a clear explanation.

[@WatasaLeevan]

Miss thx 🙏 for the efforts Plz help me to explain the difference in the amount of gases in and out during breathing

[@shazmeertv44]

@@WatasaLeevanno

[@chloewhitehead7258]

Day before recap of big exam. Definitely helped. Thank you xx

[@MissEstruchBiology]

Good luck for your exam tomorrow 🤞

[@MrMidoo2010]

Always fabulous Miss, Great work, i always learn from you to develop my English and modify my biology knowledge. All my appreciations ,best wishes.

[@MissEstruchBiology]

Thank you Mo, Glad to hear it helps you with two different skills! Keep safe.

[@user78832]

I love this woman

[@Gamerboy19293]

40 mins to go

[@BluPlays]

Very clearly explained, thank you!

[@MissEstruchBiology]

You're so welcome 😁😁

[@AayushChitnis]

This video is a life saver thank you a lot

[@MissEstruchBiology]

I hope it helped!!

[@MissEstruchBiology]

I hope it went well for you!

[@alwayseleen9108]

That was so helpful thank you!

[@MissEstruchBiology]

you're welcome 😊

[@Ansel2k23]

This video saved my life 🎉🎉

[@MissEstruchBiology]

awww happy to help ☺️

[@erfanshahabi8217]

I don't go along my school notes since they're so long, but I do with yours, if I know all of your video knowledge can I still get an A in bio

[@ryou6453]

Exam qs

[@Alhamdulillah-aa]

What about the outer and inner pleural membranes. I don’t understand why the inner pleural membrane moves outwards in inspiration.

[@MissEstruchBiology]

Hello 😊 Everything moves outwards during inspiration to create a larger volume in the thorax and therefore a lower pressure so that air rushes in.

[@MissEstruchBiology]

Maybe send me a picture of the image on Instagram DM

[@averywalker751]

you may have saved my as exams, thank you

[@MissEstruchBiology]

Ahh good luck 😁😁😁

[@Fortu_123]

Helpful ❤

[@MissEstruchBiology]

Glad it helped

[@SophiaNGHISHITELWA]

maam could you pls make a video on the histology of the repiratory

[@muhammadtayyabafzal591]

Which cartilages are in the respiratory tract

[@short4rm]

at 6:24 in the bottom row, it says that air moves into the lungs and into lower pressure but then the column to the right says out of the lungs and from higher pressure. So do the lungs have a higher pressure than the atmosphere or vise versa?

[@MissEstruchBiology]

Hello, The pressure changes depending on the volume of the lungs (which changed as you inhale and exhale). The pressure is higher in than lungs compared to atmospheric when the rib cage moves in and up, but the pressure is lower in the lungs compared to the atmospheric pressure when the rib cage moves out and down.

[@WatasaLeevan]

Miss help me on explaining the difference in the amounts of gases breathed in and out Thus to say nitrogen, carbon dioxide, oxygen and vapour

[@MissEstruchBiology]

nitrogen won't change as it doesn't diffuse into the blood. Carbon dioxide would increase as it diffuses out of the blood into the alveoli. Oxygen would decrease as it diffuses into the blood

[@WatasaLeevan]

@@MissEstruchBiology thx you

[@WatasaLeevan]

Thx 🙏

[@roksanagodon8016]

Do we need to know about the goblet cells, ciliated epithelium and smooth muscle for this topic?

[@MissEstruchBiology]

Not for AQA Biology. 😊

[@AyushPatel-vc4ze]

Is there capillaries around bronchioles Miss? Nice explanation too

[@MissEstruchBiology]

No, the capillary beds are just around the alveoli

[@AyushPatel-vc4ze]

@@MissEstruchBiology Thanks Miss

[@BLACKWHITE-og3rg]

thanks teacher for explaining this topic to me louc u i want u to make pastpapers videos plez i am really so upset plez make me happy

[@tuteeclusters9809]

Hey, I was wondering why ciliated epithelial cells have large quantities of mitocondria.

[@MissEstruchBiology]

The ciliated cell projections sway to help move mucus up and out of the lungs. This movement requires energy in the form of ATP and ATP is made in aerobic respiration in the mitochondria. I hope that helps :D

[@minahilrashid9020]

is this also for CIE a-level biology ?

[@MissEstruchBiology]

I'm not familiar with that exam board, but you could check with your specification ( you can get this online) while watching the video to see if it is the same level of detail you need.

[@ghaidam6596]

Do bronchioles have endothelium?

[@MissEstruchBiology]

yes. Endolthelium is the term for the layer of cells which line organs in the body.

[@paulseoighemcgee5772]

You are heaven sent , Miss E .

[@MissEstruchBiology]

😄😆 aw thanks. Glad the videos are helping

[@noahwatson3984]

which exam board is this for?

[@MissEstruchBiology]

Hello It's AQA 😊

[@reemamin1584]

Thank you , my exam in two days!:/

[@MissEstruchBiology]

Good luck!!!

[@sinasaatchi5333]

Hi

[@MissEstruchBiology]

👋🏻👋🏻 hello

[@tuteeclusters9809]

Ain't got a video for smoking?

[@MissEstruchBiology]

I haven't I'm afraid, sorry

[@tuteeclusters9809]

@@MissEstruchBiology Ohk

[@ayokuadrikoagustine4469]

Thanks alot call me Ajawns.

[@MissEstruchBiology]

You're welcome 😊