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