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chapter 2HAP
| Question | Answer |
|---|---|
| Scientific method 6 steps | observe, create question, form hypothesis, test with experiments, analyze results, form conclusions |
| Control group | Used as baseline and should have everything in common with experimental group except for the independent variable |
| Experimental group | Tested on to show the experiments effect, should be the same as the experimental group except for the independent variable. |
| Independent variable | What you change |
| Dependent variable | Out come, what your measuring changes in |
| What size of sample dive is better? | larger |
| theories | Composed of well tested hypothesizes, may change |
| laws | Composed of well tested theories, probably won't change |
| Kinetic energy | motion |
| Potential | Stored energy |
| Atoms are made of | Electrons, protons, and neutrons |
| 4 elements that make up living things | Carbon, oxygen, hydrogen, nitrogen |
| Molecule VS compound | Molecule is made of two same atoms, Compound is made of two different atoms. |
| Compound vs mixture | Compound-the atom bond ex: milk-homogenous mixture Mixture- physical mixture ex: oil and vinegar |
| Colloids / emulsions | Don't settle out |
| suspensions | Settle out |
| synthesis | Large molecules are made by combining small ones |
| Decomposition | Large molecules are broken to create smaller ones, energy is usually required |
| Dehydration synthesis | Take out water to from a molecule |
| hydrolysis | Add water to break a bond |
| Atomic number = number of _____ | Protons |
| Number of neurons = ______ | Atomic mass - protons |
| The number of protons and electrons in an atom are ____ | equal |
| Atoms are polar or nonpolar | nonpolar |
| polar | Electrons are shared equally |
| nonpolar | Electrons are not shared equally |
| Protons and electrons are equal in an ___ | atom |
| In an ionic bond, electrons equal ___ | Protons - charge |
| Ionic bond | Electrons are completely lost or gained by atom |
| Bonds important for 3D structures | Nonpolar covalent |
| Carbohydrate and proteins are build out by their building blocks by ____________________ | Removing a water molecule between the pairs |
| HCO sub3 - | Bicarbonate ion found in blood, that acts as buffer which keeps PH levels regulated |
| Carbohydrates are stored in the liver and muscles as ____? | glycogen |
| Very stable and insoluble in water describes what? | Fibrous proteins |
| The phosphates purpose in a DNA molecule | Hold the molecule together |
| Oils are ... | Lipids with a high degree of unsaturation |
| Salts are ionic compounds true false | true |
| Stress proteins | chaperones |
| Eicosanoids | From arachidonic acids. Cause many symptoms that send you to dr office. Ex inflammation |
| cofactors | A coenzyme, which another must unite in order to function |
| Basic structural material of the body | protein |
| O=O means | Atoms are double bonded |
| Genetic info in encoded in the DNA by a _____ | Sequence of nucleotides. (DNA is in the nucleus) |
| What is an unstable or reactive atom? | An atom with less than 8 elements in it valence shell |
| Most abundant protein in the body | collagen |
| How many carbons and how many hydrogen are in CH sub 4 | 1 C and 4H |
| What happens in a redox reaction? | Decomposition and electron exchange occur |
| polypeptide | 10+ amino acids |
| polysaccharide | 10 or fewer amino acids |
| A chain of more than 50 amino acids | protein |
| peptide | 2+ amino acids |
| dipole | A polar molecule |
| `ratio of fatty acids to glycerol in neutral fats | 3:1 |
Created by:
nadiak
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