Honors Bio Unit 3 Vocab

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Across
  1. 4. organism whose cells contain a nucleus
  2. 5. in a molecule, uneven distribution of electrons (results in (+) and (-) poles) ex. water
  3. 7. strong, supporting layer around the cell membrane in some cells
  4. 9. a process by which liquid droplets are ingested by living cells; it is one type of endocytosis
  5. 13. network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement
  6. 15. weak attraction between a hydrogen atom and another atom
  7. 16. force of attraction between different kinds of molecules
  8. 18. a microscope with high magnification that uses electron beams in place of light
  9. 19. a microscopic hair-like tail used by cells and microorganisms for movement (usually only 1 or 2)
  10. 20. when the concentration of two solutions is the same
  11. 22. a process through which bulk amounts of specific molecules can be imported into a cell after binding to cell surface receptors.
  12. 24. microscopic, hair-like projections on the surfaces of some cells and of certain organisms (many)
  13. 25. tiny sacs that transport material within or outside the cell.
  14. 26. the process by which cells move materials out of the cell
  15. 28. when comparing two solutions, the solution with the lesser concentration of solutes
  16. 30. fluid portion of the cell outside the nucleus
  17. 32. process of diffusion in which molecules pass across the membrane through cell membrane channels
  18. 33. unicellular organism that lacks a nucleus
Down
  1. 1. the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree Celsius (°C)
  2. 2. property of biological membranes that allows some substances to pass across it while others cannot; also called semi permeable membrane
  3. 3. thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell
  4. 6. microscope that uses multiple lenses and light to enlarge the image of a sample
  5. 8. cellular transport where substances move against a concentration gradient. (requires energy)
  6. 10. process by which solids are ingested by living cells; it is another type of endocytosis
  7. 11. the process by which cells move materials from within the cell into the extracellular fluid.
  8. 12. cell organelle that stores materials such as water, salts, proteins, and carbohydrates
  9. 14. attraction between molecules of the same substance
  10. 17. diffusion of water through a selectively permeable membrane
  11. 21. process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated
  12. 23. tendency of water to rise in a thin tube
  13. 27. when comparing two solutions, the solution with the greater concentration of solutes
  14. 29. fundamental concept of biology that states that all living things are composed of cells; that cells are the basic units of structure and function in living things; and that new cells are produced from existing cells
  15. 31. cell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can used by the rest of the cell