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| instrument that measures absorbance |
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| donates (lose) a proton (H+) |
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| accept (gain) a proton (OH-) |
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| pH of a solution can be kept constant with the use of |
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| mixture of a weak acid and its conjugate base |
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| buffer that occurs naturally in living organisms |
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| buffer that occurs naturally in living organisms |
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| four categories of biological molecules |
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| carbohydrates, lipids, proteins, and nucleic acids |
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| 2 monosaccharides bonded together |
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| complex sugars (polysaccharides) |
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| benedict's reagent test for the presence of which substance |
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| biuret reagent tests for presence of what substances |
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| if benedict's reagent is positive it changes what color |
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| if benedict's reagent is negative what color does it turn |
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| if biuret reagent is negative what color is it |
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| if biuret reagent is positive what color does it change |
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| which testing solution requires heat for the reaction to occur |
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| sugars and starches are considered |
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| fats, oils, phopholipids, steroids, and cholesterol are considered |
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| enzymes, organic catalysts, and amino acids are considered |
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| major biological molecule in potatoes, onions, eggs, and milk |
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| scientist who invented the first microscope |
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| which scientist coined the word "cell" |
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| formula for total optical magnification |
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| (ocular power) X (objective power) |
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| how are enzymes used in lab |
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| active site on the enzyme becomes progressively distorted, at first decreasing its activity, until the enzyme can no longer function as a catalyst |
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| environmental phenomena that affects the 3D shape and funtionality |
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| breaks down starches into simpler sugars |
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| breaks down fats into simpler molecules |
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| break down proteins into peptides |
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