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General Biology Exam 1 Study Flashcards

컨트롤 버튼이 '내비게이션' 모드로 변경되었습니다.
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이 집합의 용어 (23)

  • Independent Variable
    The variable that is intentionally changed or manipulated by the experimenter.
  • Dependent Variable
    The variable that is measured or observed; the outcome response data.
  • Control Group
    The experimental baseline group kept under standard conditions with no treatment applied.
  • Ionic Bond
    A chemical bond formed via the complete transfer of electrons between atoms.
  • Covalent Bond
    A stable chemical bond formed when two atoms share valence electrons.
  • Hydrogen Bond
    A weak electrostatic attraction between a partially positive H atom and a partially negative atom.
  • Acidic Solution
    A solution with a pH below 7 containing a high concentration of H+ ions.
  • Basic Solution
    A solution with a pH above 7 containing a low concentration of H+ ions.
  • Logarithmic pH Scale
    A scale where each whole unit change represents a 10-fold difference in H+ concentration.
  • Protein Monomer
    Amino acids linked together by peptide bonds to form polypeptides.
  • Scientific Hypothesis
    A testable and falsifiable statement predicting the outcome of an experiment.
  • Role of Control Group
    Serves as a baseline to compare the effects of the treatment in an experiment.
  • Subatomic Particle with Negative Charge
    Electron, which orbits the nucleus of an atom.
  • pH 3 vs pH 4 Acidity Difference
    pH 3 is 10 times more acidic than pH 4.
  • pH 10 vs pH 8 Basicity Difference
    pH 10 is 100 times more basic than pH 8.
  • Example of Acidic Substances
    Stomach acid (pH 1.5-2.0) and lemons (pH 2.3).
  • Example of Basic Substances
    Oven cleaner (pH 13.5) and ammonia (pH 11.7).
  • Type of Investigation in Light Exposure Experiment
    Experimental, where the independent variable is manipulated and other factors are controlled.
  • Result of Light Exposure on Bean Plants
    Plants exposed to natural sunlight grew taller, supporting the hypothesis.
  • Macromolecule: DNA and RNA
    Nucleotide polymers.
  • Macromolecule: Protein
    Amino acid polymer.
  • Macromolecule: Lipid
    Hydrophobic hydrocarbons or fatty acids.
  • Macromolecule: Carbohydrate
    Short-term energy storage molecules.