Biology 0.0 / 5 ? BiologyCells, tissues and organsGCSECCEA Created by: Ellie2244Created on: 17-11-19 11:44 what are the two types of microscopes? light microscope + electron microscope 1 of 18 what can light microscopes do? magnify objects several hundred times 2 of 18 what can electron microscopes do? magnify objects several hundred thousand times 3 of 18 on a microscope what do you look through? the eyepiece lens 4 of 18 what do you hold it by? the handle 5 of 18 what are the 3 settings for the objective lens? times 4, times 10, times 40 6 of 18 what do you hold down the slide with? clips on the stage 7 of 18 you control how much light comes in through the? iris diaphragm 8 of 18 the ----- source helps you to see whats on the slide light 9 of 18 electron microscope.... shorter wavelength + higher resolution 10 of 18 what does resolution mean? ability to distinguish between to points that are close together + the higher resolution the more detail you can observe 11 of 18 what does TEM stand for? transmission electron microscope 12 of 18 what does SEM stand for? scanning electron microscope 13 of 18 why do we place the onion epidermis onto the slide with forceps? because if it folds no light can pass through 14 of 18 specialized cells.... have a particular job called differentiation 15 of 18 when a cell becomes specialized.... it changes structure to suit its function 16 of 18 cell that are not specialized are known as.... stem cells 17 of 18 what are the levels of organisation in a multi-cellular organism? cells->tissues->organs->organ system->organism 18 of 18
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