Term
| Steps to the Scientific Method |
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Definition
Observation ▪ Form a question ▪ Produce a hypothesis (a probable answer) ▪ Test one hypothesis at a time
▪ Experiment ▪ Collect Data ▪ Form a conclusion ▪ Accept or Reject Hypothesis |
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Term
| Define & explain Dependent Variable |
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Definition
| what is being measured in an experiment |
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Term
| Define & explain Independent Variable |
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Definition
| what is deliberately changed in an experiment |
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Term
| Define & explain Constant Variables |
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Definition
| factors that should be standardized for an experiment |
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Term
| What is Experimental Error? |
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Definition
| occur in any laboratory experiments. The #1 is Human Error |
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Term
| Explain the Purpose of Controls |
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Definition
| To eliminate the effect of a variable or else to determine the standard value. A control is used to zero-out the effects of other factors. |
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Term
| What makes a good Hypothesis? |
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Definition
| Can either be proven or rejected and States the opinion. |
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Term
| Explain how scientific data is presented. |
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Definition
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Term
| Metric System (Largest to Smallest) |
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Definition
| Kilo- (1000); meter,gram, liter (1); Deci- (0.1), Centi- (0.01), mili- (0.001) |
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Term
| Mass is weighed in _______ |
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Definition
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Term
| Length is measured in _______... |
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Definition
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Term
| Liquid Volume is measured in ______. |
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Definition
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Term
| How do you read the liquid volume? |
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Definition
| In a graduated Cylinder, by reading the bottom of the Meniscus line. |
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Term
| What are the three objective lenses? |
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Definition
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Term
| What is the magnification of the ocular lens? |
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Definition
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Term
| Whats the relationship between magnification & light? |
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Definition
| less light intensity gives a better vision |
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Term
| 4 Groups of Biological Molecules |
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Definition
1.Protein
2. Lipids
3. Nucleic Acids
4. Carbohydrates |
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Term
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Definition
| single unjoined organic molecule: a relatively light, simple organic molecule that can join in long chains with other molecules to form a more complex molecule or polymer |
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Term
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Definition
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Term
| How are polymers synthesized? |
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Definition
| Dehydration Process. monomers=Polymer+H2O |
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Term
| How are Polymers broken down to monomers? |
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Definition
| Hydration Process: Polymer+H2O=Monomer |
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Term
| Protein Polymers & Monomers |
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Definition
Monomers- Amino Acids: Amino group + Carboxyl Group
Polymers- polypeptides |
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Term
| Polymers & Monomers of Lipids. |
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Definition
Monomers-none
Polymers-EX Fats, Phospholipids, and steroids |
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Term
| monomers & Polymers of Nucleic Acids |
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Definition
Monomers- Nucleotides
Polymers- DNA and RNA |
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Term
| Monomers & polymers of Carbohydrates. |
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Definition
Monomers- monosaccharides. Ex: Glucose, Sucrose, Fructose
Polymers- polysaccharides.Ex: Starch Glycogen Cellulose and Chitin |
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Term
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Definition
| Molecules with same molecular formula, but different structure |
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Term
| What is a molecular formula? |
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Definition
| a chemical formula that specifies which atoms and how many of each atom there are in a molecule of a compound EX: C6H12O6 |
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Term
| What is a Structural Formula? |
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Definition
| an expanded chemical formula representing the arrangement of atoms and bonds within a molecule |
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Term
| What test did we use in lab for Starch? |
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Definition
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Term
| What test did we use in lab for Glucose? |
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Definition
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Term
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Definition
| huge proteins that catalyze the reactions of life |
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Term
| What enzyme did we study in class? |
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Definition
| Catalase--oxidative enzyme which catalyzes the reduction Of hydrogen peroxide to produce water and oxygen |
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Term
| What is the equation for the enzyme reaction preformed in Lab? |
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Definition
| Catalase + 2H_2O_2 → Water and oxygen 2H_2O_2 + O_2 +catalase |
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Term
| What was the source of the enzyme? |
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Definition
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Term
| What Gas was produced by the reaction? |
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Definition
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