A-level Biology RESPIROMETER- AQA required practical. How to measure the rate of respiration

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Learn this AQA A-level required practical method for the investigation into the effect of a named variable on the rate of respiration of cultures of single-celled organisms. This could be through the use of a respirometer.
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Пікірлер: 72

@alittlepigeon3647 2 жыл бұрын

very helpful, thank you!❤

@valentinahossain9724 4 ай бұрын

thank you so much!

@jackcox744 2 жыл бұрын

Thanks a lot for this. Really helped 👍

@MissEstruchBiology 2 жыл бұрын

So pleased it's helping 😊

@asuramunikavishadesilva371 2 жыл бұрын

Thank you so much!. This is really helpful

@MissEstruchBiology 2 жыл бұрын

So pleased it's helped 😁

@yenm4650 2 жыл бұрын

You’re amazing; thank you so much! I love how the content is broken down very simply and i love the exam questions at the end!

@victorialeaman1869 Жыл бұрын

L fUuzzguz gf fu

@victorialeaman1869 Жыл бұрын

@rayyannaveed6758 2 жыл бұрын

This was amazing!!

@MissEstruchBiology 2 жыл бұрын

Thank you!!!

@anujarora0 2 жыл бұрын

Thank you it cleared all my doubts

@MissEstruchBiology 2 жыл бұрын

Amazing!!! So pleased 😀

@glitterfalls 3 ай бұрын

I'm giving a levels in June and I cannot tell you how helpful your videos on practicals are because the textbook explanations makes no sense to me ❤

@MissEstruchBiology 3 ай бұрын

ah I'm so pleased!!! Good luck 😁😁

@ayesha8849 2 ай бұрын

Same I have exams starting in 16 days as I do psychology alevel

@ayesha8849 2 ай бұрын

Your videos help soo much more than my teacher could.

@user-ft6dj3pk8t 6 ай бұрын

Thank you so much this is really helpful

@MissEstruchBiology 6 ай бұрын

so pleased it helped 😀

@adailyfact 5 ай бұрын

Hey bro, what course are you applying for?

@mattbeach9256 2 жыл бұрын

Hello miss. Thanks you so much your video was really useful to me😊 can I ask if whether we could be asked how to find the diameter of the tube to find the area or will it be given to us

@MissEstruchBiology 2 жыл бұрын

HEllo, no I have not seen that before. The piece of apparatus should inform you on purchase the diameter size.

@johnnazar6516 Жыл бұрын

how would you change this practical to measure C02 produced ?

@michaelNamikaze 2 жыл бұрын

Literally found out last minute that this might be in the paper 2 as well as respiration with yeast and glucose. 😭😭 thank you so much

@adailyfact 5 ай бұрын

What grade did you end up getting.

@michaelNamikaze 5 ай бұрын

@@adailyfact A* in bio and it’s all because of miss Estruch 🙌🏾

@adailyfact 5 ай бұрын

@@michaelNamikaze Wow well done, I have a medical school offer and need AAA. I am predicted 3 A stars - any tips?

@michaelNamikaze 5 ай бұрын

@@adailyfact use her past paper question packs. I practiced daily when school gave us study leave with the topic focused questions so that once I got used to the mark scheme, I knew how respond to questions in the way that AQA want them to be in.

@allysaminnaar2635 2 жыл бұрын

is this also for ocr a ?

@oluwasegunemmanuelolaoye7259 Ай бұрын

what is the name of the color liquid or which indicator can one use for the color liquid? Thanks

@azurill6070 2 жыл бұрын

I’m a bit confused, in the advanced information Required Practical 9 is listed… Should I focus on learning this version (w/ respirometer) or the one involving yeast w/ TTC ?? ☹️

@kianairanzad9614 2 жыл бұрын

she responded to a question like this on instagram, and mentioned that questions could be asked on either method so its safest to learn both (rough method etc) :)

@azurill6070 2 жыл бұрын

@@kianairanzad9614 Thank u so much! ☺️👍👍

@Ross7501 Жыл бұрын

What are some sources of errors?

@reece3231 2 жыл бұрын

Wouldn't decreasing the volume increase the pressure in the experimental tube, causing the fluid to move towards the control group?

@MissEstruchBiology 2 жыл бұрын

It's decreasing the volume on content inside the tube, not the actual size of the tube. So the tube volume is the same, but volume of gas inside of it has decreased which is why the pressure decrease. Hope that helps

@adailyfact 5 ай бұрын

What grade did you end up getting?

@reece3231 5 ай бұрын

@@adailyfact A

@adailyfact 5 ай бұрын

@@reece3231 nice nice. What are you doing now and when did you do your A Levels?

@reece3231 5 ай бұрын

@@adailyfact psychology at Warwick university. 2022

@ammarafahad8094 2 жыл бұрын

Hi miss there are 2 videos on this same practical, are they the same?

@MissEstruchBiology 2 жыл бұрын

hey this is the correct one The other is now unlisted because I made imporements

@ammarafahad8094 2 жыл бұрын

@@MissEstruchBiology Thank you Miss

@footballvideoshd6183 2 жыл бұрын

Is there a video on how the human gas exchange system is adapted for gas exchange? I seem to only be find the mechanism of breathing (Antagonistic muscles, diaphragm etc).

@MissEstruchBiology 2 жыл бұрын

Hey its in this video from 8minutes onwards kzfaq.info/get/bejne/jd-VpZyo28fcnYE.html

@ravjayakodi2746 Ай бұрын

@ 4:52 shouldnt the pressure increase if volume decreases?

@MissEstruchBiology Ай бұрын

volume of gas decreases, not the volume of the chamber itself

@ravjayakodi2746 Ай бұрын

@@MissEstruchBiology ohhhh

@orangecaprinun 15 күн бұрын

4:37 shouldnt pressure increase? volume and pressure are inversely related?

@MissEstruchBiology 15 күн бұрын

the volume of gas is lower inside the same sized chamber (not the volume of the chamber decreasing), so gas pressure decreases

@orangecaprinun 15 күн бұрын

@@MissEstruchBiology ooh got it, thank you!! need to brush up on gas laws 😭

@yoh7605 2 жыл бұрын

Can you use this for OCR A?

@chanelle5939 2 жыл бұрын

Yep

@hannahwright410 2 жыл бұрын

that's what im doing the morning of the exam lmao

@deerani981 Жыл бұрын

BREMMYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

@deerani981 Жыл бұрын

TUSSYYYYYYYY

@1okII 9 ай бұрын

ajeeb baghairat admi hay tu

@deerani981 Жыл бұрын

Ibraheem

@Caller8194 2 жыл бұрын

hello euan banks

@deerani981 Жыл бұрын

IBRAHEEM BREMMYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY

@deerani981 Жыл бұрын

IBRAHEEEEEEEEEEEEEEEEEEEEM

@BluPlays 2 жыл бұрын

Hold on I've never seen this in my life??? I'm doing the AQA exams at the minute

@MissEstruchBiology 2 жыл бұрын

this is required practical 9! Or one option of how required practical 9 could be assessed

@BluPlays 2 жыл бұрын

@@MissEstruchBiology I did some exam questions and watched your vid so it's all good now. Thank u!

@adailyfact 5 ай бұрын

What grade did you end up getting?

@BluPlays 5 ай бұрын

@@adailyfact I got the exact mark needed for an A*, quite lucky

@adailyfact 5 ай бұрын

@@BluPlays Wow well done, I want to get an A*, any tips? I have an offer for medicine which is AAA. Do you also do chemistry?

@deerani981 Жыл бұрын

hala sploopy