Unit 3 Science

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Across
  1. 2. in a molecule, uneven distribution of electrons
  2. 5. cell organelle that stores materials such as water, salts, proteins,and carbohydrates
  3. 8. a process by which liquid droplets are ingested by living cells; it is another type of endocytosis
  4. 9. fluid portion of the cell outside the nucleus
  5. 10. tendency of water to rise in a thin tube
  6. 13. process by which solids are ingested by living cells; it is another type of endocytosis
  7. 14. process of diffusion in which molecules pass across the membrane through cell membrane channels
  8. 15. cell organelle that breaks down lipids, carbohydrates, and proteins into small molecules that can used by the rest of the cell
  9. 16. weak attraction between a hydrogen atom and another atom
  10. 17. network of protein filaments in a eukaryote cell that gives the cell its shape and internal organization and is involved in movement
  11. 19. unicellular organism that lacks a nucleus
  12. 22. tiny sacs that transport material within or outside the cell
  13. 23. when comparing two solutions, the solution with the greater concentration of solutes
  14. 25. property of biological membranes that allows some substances to pass across it while others cannot also called semi permeable substance
  15. 27. the process by which cells move materials from within the cell into the extracellular fluid
  16. 28. thin, flexible barrier that surrounds all cells; regulates what enters and leaves the cell
  17. 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
Down
  1. 1. microscope that uses multiple lenses and light to enlarge the image of a sample
  2. 3. the process by which cells move materials out of the cell
  3. 4. strong, supporting layer around the cell membrane in some cells
  4. 6. when the concentration of two solutions is the same
  5. 7. when comparing two solutions, the solution with the lesser concentration of solutes
  6. 9. attraction between molecules of the same substance
  7. 11. force of attraction Between different kinds of molecules
  8. 12. cellular transport where substances move against a concentration gradient
  9. 18. process by which particles tend to move from an area where they are more concentrated to an area where they are less concentrated
  10. 20. diffusion of water through a selectively permeable membrane
  11. 21. a microscope with high magnification that uses electron beams in place of light
  12. 24. the amount of heat needed to raise the temperature of 1 gram of a substance 1 degree celsius
  13. 26. organism whose cells contain a nucleus