A Level Biology Revision "Light Microscopy and Resolution"

You can find all my A Level Biology videos fully indexed at www.freesciencelessons.co.uk/...
In this video, we look at light microscopy and resolution. First we look at the advantages of the light microscope for viewing biological specimens. We then explore what is meant by resolution and see why light microscopes have a relatively low resolution.
Image credits:
Hi resolution image
commons.wikimedia.org/wiki/Fi...
Andy Nestl, CC BY-SA 3.0 creativecommons.org/licenses/..., via Wikimedia Commons
Green ruler
commons.wikimedia.org/wiki/Fi...
Luigi Chiesa, CC BY-SA 3.0 creativecommons.org/licenses/..., via Wikimedia Commons
Finger nail
commons.wikimedia.org/wiki/Fi...
Kommissar, Public domain, via Wikimedia Commons
Ribosomes
commons.wikimedia.org/wiki/Fi...
OpenStax, CC BY 3.0 creativecommons.org/licenses/..., via Wikimedia Commons
Light microscope
commons.wikimedia.org/wiki/Fi...
GcG(jawp), Public domain, via Wikimedia Commons
Leeuwenhoek_Microscope
commons.wikimedia.org/wiki/Fi...
Jeroen Rouwkema, CC BY-SA 3.0 creativecommons.org/licenses/..., via Wikimedia Commons
Mitosis
commons.wikimedia.org/wiki/Fi...
US government, Public domain, via Wikimedia Commons
E. coli
commons.wikimedia.org/wiki/Fi...
NIAID, Public domain, via Wikimedia Commons

[@M0Hamza9]

i really wanted to thank you for helping me in gcse science sir

[@Freesciencelessons]

I'm happy to have been able to help. Thanks for the comment. I hope that you get the GCSE results that you want.

[@HeisenBurgWhite-bi5gm]

Thank you for helping me in GCSE science honestly you helped me so much!!

[@clublinkadminoffice2425]

Hi sir, do you have a video on OCR A level biology spec point 2.1.1 "the preparation and examination of microscope slides for use in light microscopy? Is this part of an upcoming PAG 1 video?

[@noshinsayara7163]

Thanks

[@anayahhussain7118]

the goat

[@Dream_Sc4pe]

hi there Shawn, what would you recommend for someone who has had bad predicted grades for their a level mocks ?

[@Freesciencelessons]

If you have bad predicted grades FOR your mocks then you need to revise hard for the mocks to show your teacher what you can do. If you have bad predicted grades FROM your mocks then I would recommend revising very hard for every end of topic test. I would recommend finding time to watch all my A level videos and concentrate on the topics that you struggle with. Make sure that you try as hard as you can to learn the content. It takes time but you still have time if you use it well.

[@erino_0]

I recommend watching videos then trying past paper questions on topics you find hard and don't give up until you understand them

[@_21.Leo_]

I see youve finished AS level chemistry, when are you going to start A level chemistry though?

[@Freesciencelessons]

I've got to finish AS Biology and that will take a few weeks as the final topic is large. Then I'll start A2 Chemistry and Biology.

[@sabriya1225]

flashback of GCSE 2022