Sixth Form Biology

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@chelseacaviedi Ай бұрын

hello how do u make lipase solution from lipase powder?

@lemonbat1971 Ай бұрын

thanks for the video, very helpful!

@awkwardlykim Ай бұрын

Really useful, thank you so much. I'm doing a degree in Environmental Science and never really understood a lot of biology in school because my teacher wasn't great, even though I enjoyed it. This has really helped me understand. Thank you

@joeofsheffield8928 Ай бұрын

i understand it now

@BusyChum 2 ай бұрын

thank you for the experiment with detailed commentary! I was wondering if the sodium hydrogen carbonate solution does anything other than making the ph higher (like messing with the digestion of the acids, etc)??

@sixthformbiology340 2 ай бұрын

For us, just alters the pH. Hopefully it does not alter anything else. In science we hopefully adjust one variable whilst having no other effects!

@BusyChum 2 ай бұрын

@@sixthformbiology340 thank you!

@IshaCandiah 3 ай бұрын

so useful thank you!

@meejay100 3 ай бұрын

May I ask how to make the hydrogen peroxide more alkaline? Can I use sodium carbonate or sodium bicarbonate to increase the ph?

@sixthformbiology340 3 ай бұрын

Yes, you can do that

@meejay100 3 ай бұрын

@@sixthformbiology340 thank you!

@nadasowidan2803 5 ай бұрын

Hello! Can i replace sodium carbonate with any other base? Like KOH and how much should I put of it? Also, does the milk have to be fresh? Can I use boxed milk?

@sixthformbiology340 5 ай бұрын

We have never used any other base. Sodium carbonate is cheap, safe and easy to use. You can use boxed milk or powder milk...just make sure it is full fat! Good luck

@bonnielouuu3195 5 ай бұрын

Wonderful video - will share with my class :)

@sixthformbiology340 5 ай бұрын

Glad you like it! Thanks

@Cutekittens-r5 7 ай бұрын

Very bad🤢 Your voice is too low 😒 and u speak too slowly😤 SUCH A BAD VIDEO 🤦🏻

@shenmuyurai9657 7 ай бұрын

your youtube videos have really helped me with biology, thank you

@sixthformbiology340 7 ай бұрын

Our pleasure!

@harisc2688 8 ай бұрын

Doesn’t the generative nucleus undergo mitosis to form 2 male nuclei?

@insync6684 8 ай бұрын

“Well done to the person with phone” 🥸🥸

@DIMPLE_NAWANI 10 ай бұрын

What r u doing bro ?

@sairanpatel8039 10 ай бұрын

😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊 very good teach really I am very very very very happy

@SheaE.Castro 10 ай бұрын

Thanks Ma'am!

@sarah_kitty-171 Жыл бұрын

Hi can you do a video on year 8 biology chapter 3 test

@PencilTalon Жыл бұрын

Getting mine in a few months.. cant wait to try an breed em!

@Sfxxs Жыл бұрын

Hi, I am doing an experiment where I test the rate of respiration using different types of sugar. Is it normal that the colour change happens more quickly in my control trial (with only yeast and water) compared to the trial where I use glucose as a substrate. Shouldn't the trial with glucose change colour more quickly? please answer, I am a bit stuck.

@sixthformbiology340 Жыл бұрын

You are correct. There should be no colour change in your control where there is no substrate glucose, as there should be no respiration. So something has gone wrong. Maybe a mix up with tubes, or your control has some glucose present when it was made up by the technician...

@TashaDee05 10 ай бұрын

@@sixthformbiology340 Just to add to this question we're currently trialling this practical with different percentages of glucose yesterday I found the solution with a higher % of glucose took longer to go colourless (back to yeast colour) we're kind of confused we thought it would be quicker the more glucose we used.

@sixthformbiology340 10 ай бұрын

@@TashaDee05 Hi, Yes we would expect that also. It may depend on what %. For example, you may like 1x hamburger, but you may not work faster with 2x hamburger!

@TashaDee05 10 ай бұрын

@@sixthformbiology340 Thank you, we've been asked to make a 1% yeast solution with 1%, 5% & 10% glucose after looking online a bit more we might be using the wrong yeast we've got the fast action. Its just odd we've trialled the practical twice now and got the same results.

@sixthformbiology340 10 ай бұрын

@@TashaDee05 Yep, that's the problem with science...sometimes very strange results! That yeast should be OK though...good luck!

@rhysgibbs6337 Жыл бұрын

😱

@CharleyHarcombe Жыл бұрын

what graph would i use to show this?

@sixthformbiology340 Жыл бұрын

Just an x vs y scatter graph with a line of best fit would do

@owususabbath7466 Жыл бұрын

woww

@hamzahismail9892 Жыл бұрын

why is there a layer of blue after the solution changes colour?

@sixthformbiology340 Жыл бұрын

That's still in contact with the air so is oxidized

@bhanuprasad9497 Жыл бұрын

I searched many videos but the information in the video absolutely terrific 💯

@sixthformbiology340 Жыл бұрын

Glad it was helpful!

@holly1980 Жыл бұрын

very useful video thank u!

@lovablenin Жыл бұрын

I am doing an IA for Biology on this sort of experiment, and this video helped tons! I am such a visual learner, so having to do an experiment on my own is hard to know the right way to do it. Being able to watch you do it, really helps me understand exactly what I need to do, and how to do it. Thank you again!! :D

@sixthformbiology340 Жыл бұрын

Glad it was helpful! Good luck with your qualification!

@Continental123-i2n Жыл бұрын

So would taking Methylene Blue internally help remove fungus/ mold from the body?

@sixthformbiology340 Жыл бұрын

Definitely not. Don't do it!

@abundantlivingcoaching Жыл бұрын

Mark Sloans Book The Ultimate Guide to Methylene Blue talks of taking it internally USP grade… lots of promise for how it helps body X

@kyle-9893 Жыл бұрын

The correct rearrangement for capital N is: N=nK/k

@pariparii Жыл бұрын

Thats what i thought

@nutri.jordanoliveira Жыл бұрын

Does methylene blue kill yeast or help them grow?

@sixthformbiology340 Жыл бұрын

Neither! It only acts as an indicator of the conditions in the tube

@SS-cj8xf Жыл бұрын

6 years later but your videos are so beneficial

@sixthformbiology340 Жыл бұрын

DNA replication ain't gonna change much!

@aar1843 Жыл бұрын

Great Work .. Unfortunately.... Hardly Anyone has watched this video!! ✔️

@sixthformbiology340 Жыл бұрын

Thanks! Spread the word!

@mohamudh7767 Жыл бұрын

hi miss i dont know if your still active but if you are hopefully you can answer my question well miss do i have to write the exact thing for example when you wrote your method you wrote 25 oc water bath would it be ok to just write 25 another example is 2x10 syringe would it be ok to just say syringe

@sixthformbiology340 Жыл бұрын

You always need units! 25 could be C or F...so need to say which one. It is always so someone else could see your method then go away and do it from your instructions. What size syringe should they use? Tell them!

@thomasthomson5121 Жыл бұрын

I am quite suprised this is the only video on the topic when it is clearly stated in the OCR A specification, even free science lessons completely neglected to talk about it.

@setantamcstravick4017 Жыл бұрын

is u smoking crack y the video upside down

@janhvi143 Жыл бұрын

yummy yummy

@revision7685 Жыл бұрын

is there a google drive where we can access these exam questions?

@sixthformbiology340 Жыл бұрын

Sorry...no...the exam boards will not let us do that

@revision7685 Жыл бұрын

@@sixthformbiology340 ok no problem :)

@stephenbeardwood8760 Жыл бұрын

Nicely done

@sixthformbiology340 Жыл бұрын

Thanks!

@revision7685 Жыл бұрын

instead of HCl, what enzyme could be used to break the glycosidic bond?

@sixthformbiology340 Жыл бұрын

Invertase breaks the alpha-1,2-glycosidic bond of sucrose.

@sninja332 Жыл бұрын

Thanks so much miss

@sixthformbiology340 Жыл бұрын

Most welcome 😊

@nikkihj2499 2 жыл бұрын

I had a question, did you take out the bottom part of the syring or just placed the entire thing upside down?

@maliamalone342 2 жыл бұрын

What kind are they?

@sixthformbiology340 2 жыл бұрын

Leaf insects...google them for what they look like as adults!

@maliamalone342 2 жыл бұрын

@@sixthformbiology340 yes, but there are different types. Which specific type are they?

@goddamnit 2 жыл бұрын

I'm here because I'm scared of kidney stones, and now curious what one actually looks like

@tsoanelomotai3 2 жыл бұрын

Thank you❤

@Starlandia_official 2 жыл бұрын

When I put hydrogen peroxide on my open wound, I woke up with the cut having white and foamy liquid on it, I was petrified💀

@sinahaase9923 Жыл бұрын

That’s normal lol

@hibaawan3897 2 жыл бұрын

thank you soo soo much i was struggling with this and your video helped alot 😄

@sixthformbiology340 2 жыл бұрын

Our pleasure! Good luck!

@oboesussa 2 жыл бұрын

how does methylene blue affect the action of enzyme?

@sixthformbiology340 2 жыл бұрын

Methylene blue does not affect the enzyme. It just changes colour when there are more hydrogen ions around

@luisalvarez7466 2 жыл бұрын

Too much frivolity.

@sixthformbiology340 2 жыл бұрын

Never enough frivolity

@HYDROCARBON_XD 2 жыл бұрын

Omnivore digestive system can vary a lot,for example rats have mono gastric herbivore digestive system but I’m 99% sure they are omnivores,Hegdehogs have insectivore digestive system but they are also omnivore,and bears are also omnivores but they have carnivore digestive system

@HYDROCARBON_XD 2 жыл бұрын

Rats have herbivore digestive system but they are true omnivores they can digest every type of meat including raw

@nasrinsiddiqa1844 2 жыл бұрын

Wth! How do you write top to bottom like that :o

@sixthformbiology340 2 жыл бұрын

40 years of practice ✍🙄

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