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Cards In This Set
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What is science?
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Confined to anything that can be observed or measured (empirical)Search for natural causes that explain the natural worldCannot address or evaluate supernatural explanations
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What are the steps of the Scientific Method?
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Observe a patternDevelop hypothesesMake predictionsDevise test of predictionsCarry out test and analyze results
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Variable being testedExperimental groupControl group
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Controlled Experiment
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Wide-ranging explanatory powerSupported by lots of data from many different studiesOpen to revision or rejection
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Scientific Theory
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All organisms:
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Sense and respond to the environmentAcquire resourcesReproduce
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How offspring are produced
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Reproduction
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Passing of DNA from parent to offspring
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Inheritance
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Change in the structure of DNASource of variation in heritable traits
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Mutation
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Energy (sugars)Structural materialsCellulose in plant wallsChitin in insect exoskeleton
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Carbohydrates
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Fats (long-term energy storage)Phospholipids - membranesMessages (hormones)
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Lipids
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Amino acids strung together20 different kings arranged in different ordersEnzymesPerform chemical reactionsStructural materials (hair, feather, scales)
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Proteins
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Energy (ATP)DNARNA
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Nucleic Acids
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What are the 3 parts of Cell Theory?
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1. All organisms are made up of one or more cells2. Cells are the basic unit of life and the smallest unit of life3. Every new cell comes from a pre-existing cell
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Separates internal and external environmentControls the movement of materials in and out of cellAllows cell to interact with other cells
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Plasma Membrane
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Consists of semi-fluid material and organelles
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Cytoplasm
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