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paper 3 - Coggle Diagram
paper 3
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Food tests
starch
add iodine dissolved in potassium iodide to sample, turns blue/black
reducing sugar
add benedict's to sample and heat, solution turns brick red
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proteins
add biuret's, solution turns purple
lipids
add ethanol, shake for 1 minute, add distilled water, milky emulsion forms
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random sampling
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divide area into a grid, use a random number generator to select coordinates
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Microscopes
light microscope
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temporary mount
drop of water onto slide, use tweezers to place specimen on water drop, add stain, add cover slip, no air bubbles
using a microscope
clip on slide to stage, select power of objective lens, use coarse adjustment knob to bring the stage/slide into view, look down eyepiece, adjust focus with fine adjustment knob.
graticule/micrometer
line up graticule and stage micrometer,
Dilution series
make up several solutions of different, known concentrations
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