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Vanessa Christian
Приєднався 9 кві 2016
Learn science the easy way with online tutorials, watch practicals, learn content, develop transferrable skills and pass that exam!
Відео
Required Practical 11 A2 Biology
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This practical brings together all the skills practiced so far: a serial dilution and a calibration curve. In the video you see how to use quantitative Benedicts Reagent with a dilution series. You would then use the colorimeter as shown in other videos to measure absorbance and plot this on the Y axis with Concentration on the X axis to identify which person, Tom, Dick or Harry has diabetes.
AS How to Calibrate an Eyepiece Graticule
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Created with Wondershare Filmora
AS Bio Calibration Curve
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How to make a calibrations curve. 1. Use known concentrations and measure absorbance using a colorimeter 2. Plot conc on the X axis against absrobance on the Y axis 3. Measure absorbance of unknown, find the number of on the Y axis, findthe intercept with the curve of best fit, read concentration of the x axis.
BISR Year 7 Assessment and Reporting
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Hello my name is Vanessa Christian. Hope you enjoy!!!
AS Bio 1.1/4 How to make a Dilution of a Plant Extract
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How to make a dilution using percentages. Sometimes we don't use moles as a quantity, for example when we work with plant extracts. We have a stock solution and then make a dilution using that.
AS Bio 1.1/2 Moles - How to one concentration from another
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Practical Lesson 2 -How to make a 0.2 molar solution from a 1molar solution.
AS Bio 1.1/1 How to make a dm^3 molar solution in biology
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Practical Lesson 1 How to make a 1 molar solution.
AS Bio 1.1/3 Dilution series Using 0.8mol/dm^3
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Practical lesson 3 - Its easy to do a dilution series when you are working with a stock solution of 1.0mol/dm3 but how do you do it when you have a stock solution of 0.8 or 0.6. This video shows you how.
Ramal Travel Salta
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Contact Ramal Travel to maximise your time in the amazing northwest region of Argentina.
Accuracy? How do you improve accuracy in an experiment?
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Accuracy? How do you improve accuracy in an experiment?
Tricky A2 Maths Question - can you do it?
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Tricky A2 Maths Question - can you do it?
A2 p3 maths question - can you answer it?
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A2 p3 maths question - can you answer it?
18.11 Making Food Production Efficient GCSE
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18.11 Making Food Production Efficient GCSE
Can you do this Maths Question? AS/A2
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Can you do this Maths Question? AS/A2
A2 This hasn't been examined yet on the new sec
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A2 This hasn't been examined yet on the new sec
GCSE Describe and explain a graph!!
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GCSE Describe and explain a graph!!
good day, I am a student researcher, may I ask for any references of your dilution of a plant extract where can I have reference for the credibility of my research protocol for procedures, thank you!
Thank you!
this video is very helpful!
are you talking about aqa gcse?
Wonderful video! thanks
This was super helpful, thank you so much! I was really struggling to grasp this concept but you explained and showed it perfectly!
😢😢😢😢tomorrow I am doing my paper1 biology and😥😥😥
Nice vid
I need more
I like 👍 it
Can I be your student
i have a test coming soon tomorrow thank you so much for the knowledge!!
So glad to hear - hope it helped on the paper
thank you MUMMY
That first paragraph is top tier and I am going to try replicate something similar to that on Wednesday
you think it'll be worth remembering?.. I guess if something protein/ enzyme related comes up, you can use it, which is very likely because proteins are everywhere
@@33linn for the A01 maybe not but I would definitely try remember the integration
Wow, amazing video. Thank you so much!
Vanessa you are SUCH a babe. I have watched so many videos on this stupid topic and not a single one has properly explained it. I FINALLY get it. My A levels are in less than a month - great timing. THANK YOU SO MUCH
This is excellent. I cannot understand why it doesn't have many more views.
thanks
Jesus Christ am not getting 🙄🙄😔😔😢😢
tysm for this video this lit saved me for my bio practical
What is distributable and contribution?/
Thank you for the succinct and effective explanation
1000cm x 1000cm x 1000cm = One Liter. Got it. 1000cm to the 3rd power.
Also it’s 1000 micrometers and 10 Divisions.
Thank you was really stuck on these and you helped :) x
Thanks❤
this person is so jarring
What colour would you expect tube A to be?
The one I used looked different at school , I’m really confused about this topic tbh
Excellent video. I've wanted to do this myself for a long time. Is it safe to heat a 1M solution of hydrochloric acid?
Love it❤
my exam is tomorrow i wish i found this sooner. been doing 4 a levels so it is hard to prepare for all of my exams.
Thanks Vanessa.
Best video explanation for this practical. I like how you actually explain why we have to do things as this helps with exam questions
LLoooovvveee this videeeoooo 😍
thank you for this! I struggle with the maths elements of biology but you explained this really well and I now know how to get the marks.
Luving the intro. Don’t ever change it❤❤
Thank u for this!
i love u
Thank youuuu
Thanks mom
how do we add data quotes
thank you
Miss please make a video lessons on photosynthesis and aerobic respiration.
What a wonderful teacher.
Underrated channel. Thank you for the help 🙏
If all the teachers taught like this most students would be motivated to study.
I wish you were my teacher 😟
Wow 👏
Does this apply to improve. The accuracy with FSD (Full Scale Deflection)