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Food Tests - Iodine, Biuret, Benedict's, Ethanol, DCPIP

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Flipped learning lesson on this food tests lab HERE: sciencesauceonl...
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A summary of the tests of biological molecules. The following tests are included:
Iodine test for starch
Biuret test for protein
Benedict's test for reducing sugars
Ethanol emulsion test for fats
DCPIP test for vitamin C

Опубликовано:

4 сен 2024

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Комментарии : 470

@hridaylilani2618 2 года назад

Iodine - Starch test - += blue/black from orange Biuret - Protein test - += purple from blue Benedict - Reducing sugar - +=orange from blue Éthanol émulsion - Fats - += cloudy white from colourless DCPIP - Vitamins- +=colourless from blue

@mahadkhurram2950 Год назад

For the Benedict test, you forgot the other colours (green, yellow, orange, red or brick red), like he mentioned in the video

@dedpaan Год назад

nice

@nyroxl4229 3 года назад

WHAT A SCIENCE VIDEO OUR TEACHER MAKES US WATCH THATS ACTUALLY INTERESTING AND EASY TO UNDERSTAND WHATTT?!?!?

@devskiz 3 года назад

@EpicTurtle 64 stfu it really is

@almostmybedtime 3 года назад

shocking

@staceejane 3 года назад

An assignment y'all actually do! WHAT!?!?

@frzdytheconsumer8094 3 года назад

fax

@achilleus606 3 года назад

@@devskiz yh

@whimsyspopit 3 года назад

Honestly, the video was surprisingly well-constructed and beautifully produced. It was clear and concise and got the point across smoothly. Overall a pretty great choice by our online teachers lol

@themightygames5187 2 года назад

Yea

@BBQsquirrel Год назад

Why surprising 😏

@chkngtjalboy 11 месяцев назад

my biology teacher assigned this video for us to watch, and it's surprisingly helpful. great video!

@pranitsingh7228 7 лет назад

My teacher gave this to me 5 hours before my test , you really helped

@themightygames5187 2 года назад

It does very much

@_Dreamer_9306 11 месяцев назад

I still remember in 2020 during online school when our teacher made us watch this video during class. Makes me nostlagic. Until today it's useful for me and I'm using it for quick revision in 12th grade for my combined science exam, it's excellent for jogging memory. Thank you for this straightforward video!

@dinosaurcola 4 года назад

anyone from quarantine whose teachers told em to watch this here?

@mrsmagallan4486 4 года назад

@sama_lami 4 года назад

me :(

@joethebrand8083 4 года назад

@abidabschonaire1609 4 года назад

me :-(

@pck8276 4 года назад

Me:(

@mikhaild9220 7 лет назад

Teacher decided to show us this day before exams...thanks for the help

@Science_Sauce 7 лет назад

+Mikhail Diljohn you're welcome. Hope you did well in the exams

@mikhaild9220 7 лет назад

Science Sauce Thanks man and the exam went well :D

@phoenix-nc9vn 6 лет назад

Mikhail Diljohn you got a D? Jk

@vivijayafatta8378 6 лет назад

Me neither

@tibafiras1661 Год назад

I've seen more than 10 videos to understand the differences between benedict's, iodine, and biuret test but none of the videos was straight forward as this video. This is the best one. Thank you so much for this explanation.

@PianoCubeYT 3 года назад

Biology Assessment tomorrow, this really helped, thank you so much. The assessment's on the whole of Topic 1 (enzymes, food tests, osmosis, etc.) All your videos are really helpful.

@Nikki_Raven 7 лет назад

Thank you much. I'm having a biology test tomorrow and teacher decide to include this on the test. This was really helpful :)

@Science_Sauce 7 лет назад

Good luck with your test. Remember that with questions on this topic, if it asks you "How to safely test for the presence of ...", you get a mark for safety. For example, "Wear safety goggles".

@Nikki_Raven 7 лет назад

Science Sauce Thank you so much and for the tip which I will make sure to note :)

@ijustwannacommentnotmyreal9814 7 лет назад

Science Sauce Gosh thanks for that tip. I have a biology practical exam tomorrow and I don't even know what they might give. Thanks, I'll go check out your other videos now

@skpsam5000 4 года назад

Same.

@vivaanchandak4939 3 года назад

Science Sauce to kind bro

@krishtiwari9008 3 года назад

Anybody watching the video now?? But honestly this was very helpful i wrote the IGCSE exam last year and managed to get an A star thanks to you sir.. Amazing teacher

@elieesber3067 6 лет назад

Thank you so much! I have been watching tons of videos on youtube yet none were like yours! You were extremely clear about the observations and it was a very easy video to understand. Thank you Mr.Science Sauce!!!!

@maxkenmir-sherry9677 7 лет назад

Really really useful!!!! I needed this the day before my exam, thanks. Keep up the great content.

@Science_Sauce 7 лет назад

Thanks. I hope you did well in your exam.

@nazaniyas9277 2 года назад

mee toooo

@Chokuten 2 года назад

@@nazaniyas9277 same

@A045Baller 3 года назад

This was very useful, I have my a level unit 3 internal assessment in few hours and this definitely saved me. Ahmed Mohammed

@justmematt5908 5 лет назад

Good luck 2019 biology students!

@imzodiaced5428 4 года назад

2020

@trapilix356 3 года назад

@@imzodiaced5428 same

@fiyazrahuman372 3 года назад

2020

@ag6125 3 года назад

Fiyaz Rahuman we got this

@justmematt5908 3 года назад

I went on to get a 9 and study biology A level. You guys can do it!

@NellyThole-xs1nw Год назад

Where have you been all this time thank you so much I really appreciate 🥰🥰

@nobodyisnotsomebody 3 года назад

To any GCSE students good luck. And anyone whose taking any form of a science test and watched this! But thanks for the great video, it was easy to follow and understand, really helped with my studies! :)

@coolnurselady 8 лет назад

☆☆☆☆☆ 5 STARS , NICE vid, straight to the point of the tests, easy to understand THANK YOU! Please make more for BIO Labs !

@hamzaadam2874 5 лет назад

exactly what i thought 👍👌😊

@riquelcarey 6 лет назад

Why is everyone's teacher giving this to them right before exams🤔

@sumitExplains 5 лет назад

because my exam is tomorrow

@AL_1314 5 лет назад

I got a feeling that my bio teacher will give us a test tomorrow😂

@ravenclaw2555 4 года назад

riquel carey I KNOW RIGHTYTT

@ravenclaw2555 4 года назад

OhMiC SAMEEEEE

@Qploi 3 года назад

Same dude but a bit earlier

@jaemiontheblock Год назад

biology practical exam tomorrow, so this really helped me to know what exactly am i supposed to do. thanks op!

@harryscorah2091 6 лет назад

An actual clear explanation, thanks.

@nazihaibrahim6537 5 лет назад

CONCISE,BRIEF AND EFFECTIVE.CHEERS

@bonnybonte3484 2 года назад

Thanks for making us to understand

@kaylabowley6237 6 лет назад

For reducing sugars you can also use Sudan 3 which separates the oil from the water, leaving the oil on top in a red colour.

@fionawatson7691 6 лет назад

Sudan III is a lipid test not a reducing sugar test. Otherwise you are correct but emulsion test is a better one.

@lyssha1697 2 года назад

Ahhh thank you sooooo much my IS teacher gave me and my classmates this vid to watch a dat before our😀 exams and it helped soooo much thank you sooo much

@madhavj7426 4 года назад

Great explanation !!!!It was really really helpful!! I needed this the day before my exam .....THANKS FOR THE HELP @Science Sauce

@Science_Sauce 4 года назад

You’re most welcome

@odeer170 2 года назад

I’m watching this 5 minutes before my bio exam. Fingers crossed 🥲

@kittycattygo2902 5 лет назад

Thanks this really helped! Tomorrow I have lab session :)

@dr.muhammadumer5932 10 месяцев назад

I have a Biology test tomorrow.Taking help from this video.😇

@Science_Sauce 10 месяцев назад

Good luck for your test.

@yarshah135 7 лет назад

This video helped me with my Science home work. Thank You Science Sauce. I subscribed

@Science_Sauce 7 лет назад

+pika147chu happy to help! Hope you get a good mark

@mohammednabilahmed 7 лет назад

Thanks for making this Video. I really thanks the video maker from the bottom of my heart. For his video, I will be Passing my Science Exam. Once again Thank you very much. Keep making videos and keep helping us. I just Loved the video.

@Science_Sauce 7 лет назад

Thanks for the comment. Good luck with your science exam.

@mohammednabilahmed 7 лет назад

Thanks

@thembalihlemalinga6319 2 года назад

given the Question," Describe how each of the food samples identified in this experimental video is metabolised" how should one answer that question?

@charlotteparker2051 6 месяцев назад

Dudes voice is so soothing this video is yes

@zeroc0ntantchannel66 3 года назад

This video actually helped me with my science homework

@itry_mash8261 6 лет назад

If i was dipped in ethanol it would turn into a real cloud

@alterego8632 6 лет назад

I'm dead!!!!LMAO

@anirudhsreeram4015 5 лет назад

@@alterego8632 Perhaps you were dipped in methanol

@madhavj7426 4 года назад

LOL!!

@dinosaurcola 4 года назад

Alter Ego, thankfully I am not

@hellyazad7041 4 года назад

😂😂😂😂😂LOL

@matinkhomkandawire5514 Год назад

Thank you so much for this

@Roasted_You Год назад

Bro I am only litterly the person watching in 2023 Science sauce you are really awesome I hope I will do well in tomorrows test 🥰

@studyonly8213 2 года назад

thank you it helped a lot 😀👍

@elvanwyk6573 7 лет назад

Great video. You explain very well. Continue!

@joy_happy 3 года назад

Well my teacher knew which video to choose ,best teacher to best opinion ❤

@ModricoTV 2 года назад

Here for Ms. Quitiquit’s Biology class (also known as Elizabeth Jo Biology on RU-vid)

@AntlerDon 2 года назад

same

@ahmedhayat9532 2 года назад

I HAVE A BIO EXAM TOMOROW I HOPE I GET GOOD MARKS

@MukabarisaFrancine 9 дней назад

Thanks this video helped me in biology revision

@user-xf7hi3nn1h 4 месяца назад

AM having a biology practical tomorrow hope this will help me please thank you.

@RSSRSS5 6 лет назад

what would you say is a helpful way to remember the colour changes as my exam is next week - good video by the way !

@nithish.r8116 4 года назад

Thanks i have written the exam Good💖💖

@5minuteexplorer705 2 года назад

Helped a lot Thank you !

@rileytaylor6856 7 лет назад

thanks guys really helped out

@satishnikam6221 2 года назад

You can even take a food item, wrap it in paper and just rub the paper. The paper would turn greasy and a bit translucent if the food item has fats. This test is far more easier than the one you did.

@muhammadfarhan3341 2 года назад

Thats true, but IGCSE demands you to use the emulsion test to test for fats 🤷‍♂️

@boopbeepbeepboop7 3 года назад

a white emulsion also formed in the oil test tube when you used the buiret solution.

@PixelPioneerV 3 года назад

Uhh that’s for eyehole bro

@soffxx5363 6 лет назад

Learning all the practicals the day of my exam lmao! (teachers never taught me them and i only just realised how important they are *facepalm*) thanks for this!

@Science_Sauce 6 лет назад

Good luck for your exam

@soffxx5363 6 лет назад

Science Sauce thanks! It went okay

@ambetsedairus6754 5 лет назад

l think it is good things to teach biology online l like it

@kimb8583 7 лет назад

Great explanation!!! Thank you!

@Science_Sauce 7 лет назад

+Kim B you're welcome 👍

@kyconxrl4536 3 года назад

4 years ago you was in year 9 + and now you are a adult

@alejandrochinfatt1607 3 года назад

best tutorial and yea my teacher sent me here before my test

@tobilobadavid3585 4 года назад

nice video i love it. its so explanatury and easy to understand

@sprout8426 4 года назад

aw man this helped alot! thank you so much!!

@nafeesarubaiya7549 6 лет назад

thank you so much this video helped me a lot...

@bluedude6991 6 лет назад

Thank you very vey very much. Helped a lot.

@linganibalise2833 2 года назад

Thanks

@markarca6360 4 года назад

There is also the Fehling's test, also used to test for glucose. Fact: Both the Benedict's test and the Fehling's test was used to detect the amount of glucose in the urine of diabetics. Actually, they use a colorimetric chart to tell the amount of glucose in the urine.

@callum4135 2 года назад

9th grade biology where y'all at

@FardowsaHassan-hz4nv Год назад

Thank you

@docteramma8879 3 года назад

Love ur every single video... But depress to find not enough content available😞

@itsstillwill7419 7 лет назад

Thanks really helped out with my homework

@Science_Sauce 7 лет назад

+Its Still Will Happy to help!

@deesar9920 6 лет назад

This is very helpful for my practical exam xD

@vouge3807 5 лет назад

thx for the video bioloy atp tommorow...

@Science_Sauce 5 лет назад

Good luck

@vouge3807 5 лет назад

@@Science_Sauce Thanks.

@Kurosaka 5 лет назад

same

@ellisthomas8981 7 лет назад

Waw, what a great video. Thanks this helped so much.

@ahmedhayat9532 2 года назад

YEP IT IS SOOO USEFULL

@santoshray7958 7 лет назад

Plz upload a video how we could check out the life of a food products

@tinolay1398 5 лет назад

Thank You so much

@saayatakahashi1681 7 лет назад

Very Easy to understand!

@aaronmbewe1787 7 лет назад

so good. I love this.

@anushaperera2081 2 года назад

Who came here because of the DCPIP test?

@dylgmd8407 5 лет назад

Awesome Sauce!

@thomasrebair7207 3 года назад

Isn’t it awesome sauce!

@heebyjeeby4419 3 года назад

why do u have to pour the biuret solution on top of the protein suspension, basically y does it have to form a layer on top before mixing?

@Science_Sauce 3 года назад

It doesn’t. In the experiment in the video I used egg white which is very thick so the solutions didn’t mix until shaken or stirred. It’s not necessary for that to happen when testing for proteins, however.

@dr.bhalchandragajare5731 7 лет назад

made easy to understand. great educational video.

@Science_Sauce 7 лет назад

+Dr. Bhalchandra Gajare thanks for the feedback!

@francescaleo2479 4 года назад

PROFESSOR HOW DO WE TEST IF A FRUIT OR VEGETABLE HAVE IODINE AND HOW DO WE KNOW IF THERE SOIL HAVE IODINE WHAT COLOUR WILL BE THE SOIL IN SEARCH OF IODINE IN FRUTS AND PLANTS KINDLY I ASK I NEED YOUR HELP 🙇

@fatematejani790 4 года назад

THANK YOU SO MUCHHHH (yes, I am losing my mind, but seriously, thank you.)

@treefrog123a 2 года назад

Show tests for adulterants diff salts radium diff chemicals polysorbates, phosphor combos etc...please

@BekaboyBekaboy-rg2tk Месяц назад

What the solution of non reducing sugar

@jairossmatimba6394 6 лет назад

this is truly helpful

@liditube8861 3 года назад

good luck 2021 biology students

@samimahufe3327 5 лет назад

this helped preparing 4 my exam tommorow

@Science_Sauce 5 лет назад

Good luck

@bigdaddydanz7967 6 лет назад

why do we need to include water in this experiment?

@Science_Sauce 6 лет назад

It’s used as a control, to confirm that any observable changes are the result of a biological molecule.

@bigdaddydanz7967 6 лет назад

Thanks :D

@bellayip1820 7 лет назад

What should i do in the examination if i need to test for starch with iodine solution in some food sample which is not juicy? add water into it?moreover, do i need to remove the powered food example after peel off the skin of fruit?what is the use of it? thank you p.s. i love your video

@Science_Sauce 7 лет назад

+Bella Yip Add water and mash it up, then do the test like normal. As for peels, yes, they need to be removed if doing food tests as you want to test the edible part of the food. Hope this helps.

@blessedmutonyi7341 10 месяцев назад

Thanks for helping

@Science_Sauce 10 месяцев назад

Happy to help

@mehh_sfav 5 лет назад

Waoooo thank u for this ❤❤

@Science_Sauce 5 лет назад

You’re welcome!

@halarefaie8675 5 лет назад

THANK YOU SO MUCH

@karims4160 6 лет назад

ATP today arghhh... Thanks :)

@jessicaamadi8298 5 лет назад

nice explanation

@bonnybonte3484 2 года назад

Be bless

@reygiemaecabinbin2775 3 года назад

If one of the food samples did not react with the Biuret test, does this mean that the food sample contains no protein?

@harjingle 3 года назад

it means no protein if it didn't react

@almostmybedtime 3 года назад

Yes.

@johann296 6 лет назад

thank you thank you

@SydneyDover-12104 4 года назад

What is the controlled substance

@Tesyeax 3 года назад

SO HELPFUL!!

@PixelPioneerV 3 года назад

Nice right 👍

@yenshirou 5 лет назад

Haahhaa this is rlly good thanks dud I wouldn't have got this if not for this vid

@poeticallydamaged8372 3 года назад

Can biuret’s test identify the presence of carbohydrates or not?

@almostmybedtime 3 года назад

Biuret only tests for proteins. Carbohydrates are not proteins, they are sugars or starches, so you can use benedict reagent.

@Rin-ot7ww 7 лет назад

helps a lot!

@lilithm.116 6 лет назад

why should you add exactly 2 cm cubic of ethanol to the sample? shouldn't the volume of ethanol added is the same as/more than the sample's volume? thank you :)

@Science_Sauce 6 лет назад

Yes I would recommend adding more ethanol to a large sample

@lilithm.116 6 лет назад

thank you, the answer and the video is really helpful