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24 Cards in this Set
- Front
- Back
Hypothesis
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logical explanation
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prediction
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if/then statement designed to test a specific hypothesis
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independent variable
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the variable that changes in an experiment
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controlled variable
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the variable that would naturally change but that is artificially controlled
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dependent variable
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measurable change in experiment
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control
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experiment where the independent variable is at established level or left out.
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macromolecule
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large molecule
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4 macromolecules
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carbohydrates, proteins, lipids, DNA
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Carbohydrate
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simple sugar (monosaccharides)
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protein
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amino acids
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DNA
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nucleotides
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Benedict's Solution + Heat
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Simple Sugar: Blue to green to red-brown
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Buiret
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Protein: (NaOH + CuSO4) clear to violet. Detects presence of a peptide chain. Doesn't work if reactive groups aren't exposed.
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Sudan IV
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Lipid: clear red to deep red (fat soluble dye)
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Grease spot
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Lipid: Translucent on paper
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Starch
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Iodine (yellow to bluish-black)
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What are sugars made up of and used for
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Small carbohydrate molecules used as a source of energy by all organisms and manufactured in the chloroplasts of plants.
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Carbohydrates
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C, H, O
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simple sugars (monosaccharides)
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fructose, glucose
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Dissaccharides
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combination of 2 monosaccharides: lactose, galactose, maltose, sucrose,
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polysaccharide
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starches
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cellulose
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most abundant organic compound on earth - a polysaccharide that forms a plant's cell walls.
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Amino Acid are formed of..
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C, H, O, N
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Peptide bond
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buiret test tests for this bond in amino acid
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