biology.txt

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Author:
emiles4311
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168355
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biology.txt
Updated:
2012-09-01 19:45:06
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biology words
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vocabulary
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  1. Atom
    Fundamental building block of all matter.
  2. Organ
    In multicelled organisms, a grouping of tissues engaged in a collective task.
  3. Community
    All populations of all species in a given area.
  4. Molecule
    An association of two or more atoms
  5. Organ System
    In multicelled organisms, set of organs engauged ina collective task that keeps the body functioning properly.
  6. Ecosystem
    A community interacting with its environment.
  7. Cell
    Smallest unit of life.
  8. Organism
    Individual that consists of one or more cells.
  9. Biosphere
    All regions of Earth where organisms live.
  10. Tissue
    In multicelled organisms, specialized cells organized in a pattern that allows them to perform a collective function.
  11. Population
    Group of individuals of the same species that live in a given area
  12. Biology
    The scientific study of life.
  13. Producers
    Organism that makes its own food using energy and simple raw materials from the environment.
  14. Consumers
    Organism that gets energy and nutrients by feeding on tissues, wastes, or remains of other organisms.
  15. Nutrient
    Substance that an organism needs for growth and survival, but cannot make for itself.
  16. Energy
    The capacity to do work.
  17. Metabolism
    All the enzyme-mediated chemical reactions by which cells accquire and energy as they build and break down organic molecules.
  18. Reproduction
    Processes by which parents produce offspring.
  19. Evolution
    Change in a line of descent.
  20. Adaptation
    A heritable trait that enhances an individual's fitness.
  21. Homeostasis
    Set of processes by which an organism keeps its internal conditions within tolerable ranges
  22. Growth
    In multicelled species, an increase in the number, size, and volume of cells.
  23. Development
    Multistep process by which the first cell of a new individual becomes a multicelled adult.
  24. Diversity
  25. Receptor protein
    Plasma membrane protein that binds to a particular substance outside of the cell.
  26. Stimulus
    Form of energy that a sensory receptor detects.
  27. Stimuli
  28. Taxonomy
  29. Photosynthesis
  30. Mutation
  31. DNA
  32. Species
  33. Genus
  34. Inheritace
  35. Emergent properties
  36. Bacteria
  37. Archaea
  38. Domain
  39. Kingdom
  40. Eukarya
  41. Eukaryotic
  42. Protists
  43. Fungi
  44. Plants
  45. Animals
  46. Nucleus
  47. Observation
  48. Hypothesis
  49. Experiment
  50. Conclusion
  51. Prediction
  52. Sampling error
    Difference between results derived from testing an entire group of events or individuals,and results derived from testing a susbet of the group.
  53. Variable
  54. Placebo
  55. Scientific theory
  56. Control group
  57. Experimental group
  58. Data
  59. Deductive reasoning
  60. Inductive reasoning
  61. Dependent variable
  62. Independent variable
  63. Probability
    The change that a particular outcome of an event will occur.
  64. Law of nature
    Generalization that decribes a consistent natural phenomenon for which there is incomplete scientific explanation.
  65. Atom
    Particle that is a fundamental building block of all matter.
  66. Proton
    Positively charged subatomic particle that occurs in the nucleus of all atoms.
  67. Neutron
    Uncharged subatomic particle in the atomic nucleus.
  68. Electron
    Negatively charged subatomic particle that occupies orbitals around an atomic nucleus.
  69. Atomic mass
  70. Periodic table
    Tabular arrangement of the known elements by atomic number.
  71. Ion
    Charged atom.
  72. Molecule
    Two or more atoms joined by chemical bonds.
  73. Compound
    Type of molecule that has atoms of more than one element.
  74. Element
    A pure substance that consists only of atoms with the same number of protons.
  75. Energy level
  76. Charge
    Electrical property. Opposite charges attract and like charges repel.
  77. Shell model
    Model of electron distribution in an atom.
  78. Electronegativity
    Measure of the ability of an atom to pull electrons away from other atoms.
  79. Mixture
    An intermingling of two or more types of molecules.
  80. Polarity
    Any separation of charge into distinct positive and negative regions.
  81. Polar covalent bond
  82. Hydrogen ion
  83. Water
  84. Surface tension
  85. Cohesion
    Tendency of molecules to resist separating from one another.
  86. Solvent
    Liquid that can dissolve other substances.
  87. Solution
  88. Solute
  89. A dissolved substance.
  90. Evaporation
    Transition of a liquid to a gas.
  91. Hydrophillic
    Describes a substance that dissolves easily in water.
  92. Hydrophobic
    Describes a substance that resists dissolving in water.
  93. pH
    A measure of the number of hydrogen ions in a fluid.
  94. Base
    Substance that accepts hydrogen ions in water.
  95. Basic
  96. Acid
    Substance that releases hydrogen ions in water.
  97. Acidic
  98. Buffer
    Set of chemicals that can keep the pH of a solution stable by alternately donating and accepting ions that contribute to pH.
  99. Salt
    Compound that releases ions other than H+ and OH- when it dissolves in water.
  100. Temperature
    Measure of molecular montion.
  101. Concentration
    The number of molecules or ions per unit volume of a solutions.
  102. Organic compound
  103. Fuctional group
    A group of atoms bonded to a carbon of an organic compound; imparts a specific chemical property to the molecule.
  104. Lipid
    Fatty, oily, or waxy organic compound.
  105. Carbohydrate
    Molecule that consists primarily of carbon, hydrogen, and oxygen atoms in a 1:2:1 ratio.
  106. Fatty acid
    Organic compound that consists of a chain of carbon atoms with an acidic carboxyl group at one end. Carbon chain of saturated types has single bonds only; that of unsaturated types has one or more double bonds.
  107. Protein
    Organic compound that consists of one or more chains of amino acids (polypeptides).
  108. Nucleotide
    Monomer of nucleic acids. Consists  of a five-carbon sugar, a nitrogen-containing base, and phosphate groups.
  109. Nucleic acids
    Single or double stranded chain of nucleotides joined by sugar-phosphate bonds; for examples,DNA, RNA.
  110. Saturated
  111. Unsaturated
  112. Amino acid
    Small organic compoud that is a subunit of proteins. Consists of a carboxyl group, an aminegroup, and a characteristic side group (R), all typically bonded to the same carbon atom.
  113. Monosaccharide
  114. Disaccharide
  115. Polysaccharide
  116. oligosaccharide
  117. glucose
  118. hydrolysis reaction
  119. condensation reaction
  120. phospholipid
    A liquid with a phosphate group in its hydrophilic head, and two nonpolar fatty acid tails; main constituent of eukaryotic cell membrances.
  121. hydrocarbon chain
  122. monomers
    Molecules that are subunits of polymers.

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