Gas Exchange in Insects

[@1HappyPiggy]

Best A-Level revision channel ever. Thank you Mr Pollock!

[@MrPollockBiology]

***** Thanks!

[@caitlinroper7073]

I reckon I could learn my whole A Level Biology content off you!

[@MrPollockBiology]

+Caitlin Roper I try to help! Sadly I haven't covered the entire spec yet!

[@khaledrehman6067]

@@MrPollockBiology how about now

[@haadiawaqas1826]

Thank you so much for this video. I have was having a hard time visualising all the different parts of the insect but this video made it so easy to visualise and understand!

[@fatiman5344]

This is really helpful despite the fact i do the WJEC board, this pretty much explains its all, thank you Mr Pollock :)

[@andrebarreto9177]

Thanks, good video, short and easy to understand. Thumbs up to you.

[@RK-kc9ne]

Pranam sir, 🙏 Nice video

[@chloe8480]

I can only learn visually like this, thank you

[@MrPollockBiology]

+Chloe Scott You're most welcome. Glad it helped!

[@no-one00]

This video is helping me soo much IMMA just go and watch your other gas exchange video about the fish again....

[@alnabil07]

Thanks for this video 🙂❤️ Love from Bangladesh ❤️

[@Naslex17]

Thank you!! Was really waiting for a video like this for the exam!

[@MrPollockBiology]

Jalal Asif Glad I could help!

[@abdikadiraden4421]

This was helpful. I would like to see gaseous exchange in fish

[@sabaali9796]

Hi there, You're videos are great and very helpful in terms of knowing the content, however lots of students struggle with exam technique so could you please make more videos about how to structure answers to secure as many marks as possible

[@silentwolf7740]

great video sir..

[@eddiewu2336]

Impressive explanation, thank you!

[@tazxbakes]

I thought an insect would have a large surface area compared to their volume??? and larger organisms have a small surface area to volume ratio.

[@atifahidari9576]

yeah that's what I thought

[@jakepacey1591]

That's correct

[@rh8528]

hence can lose water too easily

[@NoOne-xu1hk]

Compared to humans, it has a large SA:V, but compared to bacteria, which is probably the video prior to this, insects have a smaller SA:V

[@user-kk4vi2jy6c]

Well that only happens to microorganisms like amoeba and paramecium.

[@farzanashaikh540]

very informative!!!nice compiling...

[@sidharthakumar8563]

thank you sir; probably the best & easiest explanation on the subject; could you illustrate insect circulatory system in a video, please?

[@abbicampbell3433]

Could you do a video on meiosis/mitosis, and the causes of variation? Your videos have been so helpful :)

[@MrPollockBiology]

Will add it to the list!

[@sunahangrai9115]

thank you best of luck .

[@taimoorkarim2355]

could you please do a video on the circulatory system from aqua in unit 2

[@geeteshdc3406]

That was so good! but please could you upload a little more detail of all those systems in insects!! :)

[@letsgo4034]

Good job

[@norarahimi5117]

Thank you, this was very useful.

[@lanakieres3538]

Please make a video on biology exam questions.....please?

[@jownas1]

awesome man!

[@williamhenderson5647]

very good video, however you didn't explain about what happens during extreme muscle use (when the tracheal fluid is drawn into cells etc...)

[@AlittlebitofLauraJo]

These videos are a great help! Is this specific video still entirely relevant for the new spec? (Same with the other videos)

[@uglynigga696]

These videos are great and are the only hope for me getting an A! Just wondering though; how many videos are you away from completing the AS spec?

[@kirstyoconnell2790]

Any chance you could make videos for the WJEC spec. Love these videos in terms of content but they do all seem to be directed at AQA 👍🏼

[@mistarizla]

Does movement of the insects muscles create a mass movement of air in and out out of the trachea, thus speeding up gaseous exchange?

[@MrPollockBiology]

Yes the pumping of the abdomen does ventilate the insect quicker. I wouldn't say it speeds up gas exchange though...it's more to help the insect meet the increased oxygen demands of respiring tissues during exertion.

[@mistarizla]

ok thank you!

[@willhughes3477]

Great channel!!😄

[@KairelEdwards]

EXCELLENT!

[@colemanhelm6678]

Very cool, thanks

[@sizzlewizzle8]

Really helpful, hate gas exchange, this helps me a lot :) #visuallearner

[@JWinspear2109]

Can't use this for aqa as you don't cover anything about the diffusion gradient or, more importantly, the ends of tracheoles being filled with water...

[@adamsteamcleaning1489]

Thank u Well explained

[@thesmartest8284]

Very useful video. However in the book it is in greater detail?

[@MrPollockBiology]

+MONTESH TV The book does go into a little more detail; but this video covers exactly what the AQA specification requires for A level. If you are studying a different course you may be expected to know a little more or a little less depending.

[@Wickedstickyflowers]

Is there more oxygen available in water or air

[@blondiebush6100]

Do insects need to expel CO2?

[@Rhh26]

Is this information applicable to OCR?

[@RuhabDabeer]

I do WJEC Eduqas Is it quite the same

[@passivemoon]

Thank you.

[@ericlawrence9060]

Mr. Pollock... How do the insects not have bacteria growing like crazy in their wet breathing tubes????????? they are literally crawling through their own filth often... you would think infections would be killing them constantly.

[@fife8332]

Does the limitation of atmospheric oxygen to organism size also apply to vertebrates? And if so, is that why dinosaurs were so fucking big?

[@omarahmed6731]

Locusts have a large SA:V ratio not a small

[@MrPollockBiology]

Omar, in Biology we must think about SA:V as relative. Whilst I agree that insects will have a large sa:v relative to a human, they will have a small sa:v relative to a bacterium. In this video we are considering the implications of surface area and volume upon gas exchange. Any organism which has a dedicated gas exchange surface does so because it is unable to exchange directly with its environment, because the demands of its cells are too high. It therefore follows, that any organism with an internal exchange surface does so because it's SA:V is too small to allow exchange through its surface. I hope that helps

[@omarahmed6731]

Mr Pollock ahh yeah I understand thanks

[@urinetime3267]

فقط بالجراد هاي العمليه ؟

[@noorbensaid6955]

+akram لا في جميع الحشرات

[@providencethubelihlemoyo1282]

can i have information on reproduction of insects

[@mariaaxis4859]

PLEASE DO IMMUNOLOGY!!!!

[@remshahraza6903]

Cannot thank you enough

[@max25i67]

insects have large S.A and small vol....

[@NoOne-xu1hk]

Compared to humans, it has a large SA:V, but compared to bacteria, which is probably the video prior to this, insects have a smaller SA:V

[@Jay-jc2mj]

Posted on my bday.. when i got xbox 360 :D

[@Jay-jc2mj]

The vid... Not the comment

[@gaynellegilbride2062]

Thank you!

[@MrPollockBiology]

+Gaynelle Gilbride You're most welcome

[@shafiahaiman1866]

Ur on my form5 bio textbook (qr code)

[@mattn1388]

You say small surface area, large volume. I disagree with this because small animals have high surface area, low volume, ratio, which allows them to be without lungs. Where as an elephant has a large volume and lower SA and obviously needs lung

[@MiniMaster-ux7qn]

hehe the video length is 4:20

[@Wickedstickyflowers]

Why can’t we just breath through our skin … surface area

[@hakim-on]

Siapa Dari buku teks biologi tingkatan 4 like

[@yuzhits3530]

Takle lawan che

[@taimoorkarim2355]

*aqa