9th Biology - Biochemistry unit 1

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Author:
treats101
ID:
281867
Filename:
9th Biology - Biochemistry unit 1
Updated:
2014-10-09 21:06:22
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biology
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Biology
Description:
to study for biology unit one test
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  1. atom of the same element with a different number of atoms
    isotope
  2. bonds formed when one or more electrons are transferred from one atom to another
    ionic bonds
  3. bonds formed when electrons are shared between atoms
    covalent bonds
  4. a molecule in which the charges are unevenly distributed
    polar
  5. an attraction between molecules of the same substance
    cohesion
  6. an attraction between molecules of different substances
    adhesion
  7. a material composed of two or more elements or compounds that are physically mixed together but not chemically combined
    mixture
  8. substances that are dissolved
    solute
  9. a mixture of two or more substances in which all of the compounds are evenly distributed
    solution
  10. a substance in which the solute dissolves
    solvent
  11. mixture of water and non-dissolved materials
    suspension
  12. any compound that forms h+ ions in solution
    acid
  13. compound that produces hydroxide ions in solution
    base (alkaline)
  14. indicates the concentration of h+ ions in solution
    pH scale
  15. weak acids of bases that can react with strong acids or bases to prevent sharp sudden changes in pH
    buffers
  16. atom that has a positive or negative charge
    ions
  17. large molecules in cells made from thousands or hundreds of thousands of smaller molecules
    macromolecules
  18. small unit that can join together with other small units to form polymers
    monomers
  19. large compound formed from combinations of many smaller monomers
    polymers
  20. compounds made up of from carbon hydrogen and oxygen atoms usually in a ratio of 1:2:1; used as main source of energy
    carbohydrates
  21. another name for simple sugars
    monosaccharide
  22. large macromolecules formed from monosaccharide
    polysaccharides
  23. large and varied group of biological molecules that is generally not soluble in water. made mostly from carbon and hydrogen atoms and used to store energy
    lipids
  24. the fatty acids contain the maximum possible number of hydrogen atoms
    saturated
  25. a fatty that has at least one carbon-carbon double bond
    unsaturated
  26. individual monomers that make up nucleic acids. consists of three parts: a 5 carbon sugar, a phosphate group and a nitrogenous base
    nucleotides
  27. macromolecules containing hydrogen oxygen nitrogen carbon and phosphorus. Store and transmit hereditary or genetic information.
    nucleic acids
  28. macromolecules that contain nitrogen as well as carbon hydrogen and oxygen; some control the rate of reactions and regulate cell processes, some are used to form bones and muscles, other transport substances into and out of the cells or help fight disease
    proteins
  29. polymers of molecules that make proteins
    amino acids
  30. proteins that speed up chemical reactions in a cell
    enzymes
  31. energy needed to get a reaction started
    activation energy
  32. substance that speeds up the rate of chemical reaction
    catalyst
  33. the reactants of enzyme-catalyzed reactions
    substrates

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