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Summary Topic 1 - Foundations of biology Revision cards

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Topic 1 - Foundations of biology Revision cards I can not set the price lower than 2.50 sorry by the bundle for 5

Institution
OCR
Module
Unit 1
















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Ann Fullick, Jo Locke A Level Biology A for OCR Student Book
  • september 2015
  • 9780198351924
  • 1

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Study Level
A/AS Level
Examinator
OCR
Subject
Biology A
Unit
Unit 1
All documents for this subject (19)

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Uploaded on
March 3, 2023
Number of pages
152
Written in
2022/2023
Type
Summary

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,
,
,
,
,
,
, Microscopes produce magnified images of objects. Light microscopes use a
visible light beam (400nm-700nm) to produce a 2D photomicrograph.

Resolution in light
microscopes is 200nm, Eyepiece
so a ribosome (20nm)
is not distinguishable.
Magnification is 1500- Objective lens
2000x.

Light microscopes are: Stage
• Cheap
• Easy to use
• Portable
• Able to view living Fine focus
specimens knob


Total magnlfication = Objectiv
e lens magnification x eyep
iece lens magnification

,

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