Cell Structure A-LEVEL - OCR - BIOLOGY 'Complete the sentence' - style flashcards 0.0 / 5 ? BiologyCellular processes and structureASOCR Created by: KHillCreated on: 09-09-14 11:25 A light microscope works by projecting a light through a... specimen, then focusing it with a series of lenses to magnify the image 1 of 12 Total Magnification = Power of the eyepiece lens x Power of the objective lens. 2 of 12 Magnification is... how much larger an image appears than the object actually is. 3 of 12 Magnification = Image size / Actual size. 4 of 12 Good light microscopes are capable of magnification of up to... x1500. 5 of 12 Increasing the magnification may not be useful due to... the limits of resolution of light. 6 of 12 Resolution is... the ability to distinguish between two seperate points. 7 of 12 Increasing resolution allows you to see more... detail. 8 of 12 What is the disadvantage of light microscopes? Light microscopes' limit of resolution is 200nm 9 of 12 What are 3 advantages of light microscopes? 1) They are relatively cheap 2) Living organisms can be viewed 3) Thin sections of larger specimens can be studied 10 of 12 Samples are often stained which... bind to chemicals in the specimen to allow them to be seen 11 of 12 Samples are stained with... Acetic Orcein or Gentain Violet 12 of 12
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