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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 |