2.1.1. Cell structure b) The use of an eyepiece graticule and stage micrometer.

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OCR A level Biology A
2.1.1. Cell structure
b)The preparation and examination of microscope slides for use in light microscopy.
Including the use of an eyepiece graticule and stage micrometer.
In this video I have focused on how to use a graticule if you would like to know more about preparing a microscope slide see this video
• 2.1.1. Cell Structure ...
#Graticule #Microscopes #ALevelBiology #ASBiology #OCRALevelBiology

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4 окт 2024

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Комментарии : 52

@clarebiology2858 2 года назад

Edit; at 3:42.....20 x 28.5 = 570 micrometers which is 0.57mm. This is not an actual width of a cell. The numbers used are to illustrate how to use a graticule. A plant cell is no bigger than 100micrometers. Thank you to @Taufiqul Huque for spotting this mistake.

@joe4123 Год назад

All year I couldn’t understand this and this 5 min vid explains it perfectly

@clarebiology2858 Год назад

so glad this was helpful, please share with your classmates 👍

@ryou6453 6 месяцев назад

same lmao

@kreesh0_095 10 дней назад

Thank you this definitely helped me understood microscopy more

@clarebiology2858 5 дней назад

Glad it helped!

@alanadres6240 2 года назад

U saved my life, thank u wholeheartedly

@libbypearson-qu2um Год назад

Watching this right before paper 1. So so helpful! thank you tonnes

@clarebiology2858 Год назад

You're so welcome! good luck today 👍

@HayleyMackenzie-h4e 18 дней назад

most helpful video

@clarebiology2858 5 дней назад

Glad it helped, please share with your classmates😍

@rseggddrgxffhfdfg Год назад

absolute legend saving my a levels

@clarebiology2858 Год назад

so happy they are helping you so much!!! please share, like and subscribe 👍

@keziahsizya-qu7pw Год назад

I am about to do my first biology paper today and I’ve been using your videos over the past few months to help me prepare for my exams, I just wanted to thank you so much for your help💕

@clarebiology2858 Год назад

you are welcome!! so glad they have been of help to you😀 good luck today 🤞

@Ibrahim01929 Год назад

Ahhh thanks so much!! It makes alot more sense now

@ivieagho5489 Год назад

Thanks Clare, was really helpful

@plurz4342 Год назад

Im half way through year 12 and just sort of skipped over this topic because I never understood it. This video is the best thank you soooo much!!!!!

@clarebiology2858 Год назад

you are welcome please share and like with your classmates 👍

@Behappy_s Год назад

Thank you so much it helped me a lot!!!!!!!

@clarebiology2858 Год назад

So glad this was helpful for you! Please like, share and subscribe 👍 good luck with your studies 🤞

@raisadrawss4190 2 года назад

thank u so much, explained so perfectly

@clarebiology2858 2 года назад

Fab thanks, glad it was helpful. Please share and like 👍

@nonkululekothethani8263 Год назад

Sooooo helpful. Thanks 💕

@abdulemalik8848 Год назад

Thank you

@SafaRehman-f5q 5 месяцев назад

Hi, will an exam question ever ask us for the method on how to calibrate an eyepiece? Or how to use the microscope? Not exactly sure what things they could ask us. Thanks

@clarebiology2858 5 месяцев назад

no probably not the method but they might ask you to calibrate an eyepiece using a picture 👍

@ZamlaH Год назад

Thank youu ❤

@SafaRehman-f5q 4 месяца назад

Hi, do you know exactly what organelles we may have to draw in the exam? And which one do you think may come up this year? Thanks

@clarebiology2858 4 месяца назад

I think they are more likely to give u a microscope image of a tissue and ask u to draw that. they might ask you about the ultra structure of a cell and link it to an hepatocyte or something else 👍

@yareliaguilar-acosta9859 Год назад

I don't understand how you are finding the eyepiece values from the objective lens? At 3:50 you show 2-5 number distance which = 20 eyepieces but how did you get this number?