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Study Guide 1 - Using your lecture notes define the...

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Using your lecture notes , define the vocabulary terms and answer the questions. Processes should be described. Always use your own words. It is much more difficult to memorize information that is not written in your own wording! If you have any questions, please email me, ask in class for clarification, or post your questions/concerns on the website. Your time is valuable. Make sure you spend it studying correct and complete information. Introduction 1. Vocabulary Science The observation, identification, experimental investigation and theoretical explanation of a phenomena Biology The study of life scientific method The protocol to study phenomena peer-reviewed When an author’s work is checked by an expert in the same field independent variable Changed on purpose by the researcher dependent variable response that is measured constant All the factors that are kept the same in the experiment prokaryotic (prokaryote) A type of cell with no membrane-bound organelles eukaryotic (eukaryote) Nucleus and membrane-bound organelles Autotroph / Producer The producers, basic of all food webs Heterotroph / Consumer Consumers, anything that doesn’t do photosynthesis Metabolism Sum of all chemical reaction of an organism Catabolism Breaking down complex to simple molecules (Glucose -> Energy) Anabolism Build complex molecules from simple ones (Amino acids -> Proteins) Homeostasis Internal equilibrium keeping constant Asexual Reproduction by mitosis Taxonomy Also called systematic biology, a science of classifying organism
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taxon (taxa) The level of the 8 major Taxonomy categories 2. What are the steps of the scientific method as described in class . Know what a hypothesis is. What are controls and why are they necessary? Uses the same equipment & conditions, but no variables are tested. By running the two setups together, the scientist will have an excellent idea as to what the effect of changing one item has on the outcome, with the results of the an unchanged comparison handy also.   What do you do if your data does not support your hypothesis? What does peer reviewed mean? 3. What are the six characteristics of life as described in class . Know that an adaptation occurs in a population over time – NOT in an individual. Precise organization Organism grow and develop Organisms have self-regulating metabolism Response to stimuli Reproduction Adaptation 4. Know the two main types of cells and be able to name the similarities and differences between them. Eukaryotic Prokaryotic Have nucleus & membrane-bound organelles No nucleus & no membrane-bound organelles DNA linear DNA circular Larger & More complex Small & simpler Enclosed by plasma membrane Filled with cytoplasm Have DNA to operate the cells Loaded with small structure called ribosomes 5. Describe homeostasis and give examples of some factors that are tightly regulated in the human body.
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