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Science Regents
| Question | Answer |
|---|---|
| Observation | What is seen or measured |
| Inference | A conclusion based on observation or evidence |
| Hypothesis | An untested prediction (A good hypothesis states both cause and effect) |
| Theory | A broad explanation of natural events that is supported by strong evidencce |
| Controlled Experiment | Compares the results of an experiment between two or more groups |
| Experimental Group | Group being tested or receiving treatment |
| Control Group | "Normal" group, should be identical to the experimental group in every way except for one (it does not receieve the new treatment) |
| Placebo | A sugar pill or other fake treatment given to the control group |
| Independent Variable | Variable that is being tested (X axis) |
| Dependent Variable | Variable that is measured at the end of an experiment, the results (Y axis) |
| Chemistry | The most common elements in living things are CHON (Carbon, Hydrogen, Oxygen and Nitrogen) |
| Organic Compounds | Have Carbon AND Hydrogen |
| Carbohydrates | Sugars and starches |
| Lipids | Store energy(made of fatty acids) |
| Proteins | Make most of the chemicals used to build and run an organism's body (made of amino acids) |
| Shape Matters | It is the shape of proteins and how they fit together that determine what they can do |
| Jobs of proteins | 1. make enzymes 2. make receptor molecules on the cell membrane (for receiving chemical messages) 3. make antibodies 4. make hormones |
| Enzymes | Catalysts made of proteins |
| Low pH | 0-6 is an acid |
| High pH | 8-14 is a base |
| Neutral pH | 7 is neutral (water) |
| Homeostasis | Equilibrium |
| COLs | MRLSTRNGER |
| Metabolism | All life processes |
| Regulation | Coordination and control of other life functions |
| Locomotion | Movement towards food, water, etc. |
| Synthesis | Small to big |
| Transport | Movement of "stuff" within an organism |
| Respiration | Process that takes energy from sugar molecules and places it in molecules of ATP |
| Nutrition | Obtaining energy from the environment |
| Growth | More and bigger cells |
| Excretion | Removal of waste products |
| Reproduction | Making exact (asexual reproduction) or similar (sexual reproduction) copies of itself |