CELL CROSSWORD

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Across
  1. 3. or multicellular organisms, such as yeast, plants,and animals, composed of eukaryotic cells, which contain a true necleus and membrane-bound oganelles.
  2. 5. that have one or more flagella.
  3. 6. framework found within the cytoplasm composed of microtubles and microfilaments.
  4. 8. unit off all organisms; all living things are composed of cells.
  5. 9. rigid structures located outside the plasma membrane of plants, fungi, most bacteria, and some protists; provides support and protection.
  6. 10. that span the plasma membrane creating a selectively permeable membrane that regulates which molecules enter and leave a cell.
  7. 11. of plants organelles that used for storage of starches, lipids, or pigments.
  8. 13. that contain digestive enzymes; digest excess or worn out organelles, food particles, and engulfed viruses or bacteria.
  9. 14. that uses a beam of electrons instead of light to magfiny structures up to 500,000 times actual size; allows scientists to veiw structures within a cell.
  10. 15. model of the plasma membrane whrer molecules are free to move sideways within a lipid bilayer.
  11. 17. strands of DNA found in the eukaryotic cells necleus; condense to form chromosomes.
  12. 19. in eukaryotic cell nucleus that produces ribosomes.
  13. 20. that uses light and a series of lenses to magnify objects in steps; can magnify an object up too 1500 times its orginal size.
  14. 21. theory that(1) all organisms are composed of one or more cells,(2) the cell is the basic unit of structure and organization of organisms,(3)all cells come from preexisting cells.
  15. 22. in eukaryotic cells with a series of highly folded membranes surrounded in cytoplasm; site of cellular chemical reactions; can either be rough (with ribosomes) or smooth (without ribosomes).
  16. 24. membrane-bound organelles that transform energy stored in food molecules; has a highly folded inner membrane that prduces energy- storing molecules.
  17. 25. pigment in plants and some protists that required for photosynthesis; absorbs most wavelengths of light execpt for green.
  18. 26. in eukaryotic cells with a system of flattened tubbular membranes; sorts and packs proteins and sends then to their appropriate destinations.
  19. 27. with an attached phosphate group; plasma membranes are composed of phospholipid bilayer with embedded proteins.
  20. 28. solid proteins fibers that provide structural support for eukaryotic cells.
Down
  1. 1. charged cnter of an atom composed of neutrons and positively charged protons, and surrounded by negatively charged electrons(P.174) In eukaryotic cells, the central membrane-bound organelle that manages cellular funtions and contains DNA.
  2. 2. organisms, such as bacteria, composed of prokaryotic cell, prokaryotic cells lack internal membrane-bound structures.
  3. 4. space in the cytoplasm of cells used for the temporary storage of materials.
  4. 6. fluid in cells that is the site of numerous chemical reactions; in eukaryotic cells, it suspends the cell's organelles.
  5. 7. of the plasma membrane that maintains homeostasis within a cell by allowing some molecules, into the cell while keeping others out.
  6. 8. organelles found in the cells of green plants and some protists; capture light enegry and converted it to chemical energy.
  7. 12. boundary between thhe cell and its environment; allows materials such as water and nutrients to enter and waste products to leave.
  8. 16. structures with particular funtions within eukaryatic cells.
  9. 18. organelles in the nucleus where proteins are assembled.
  10. 23. hollow cylinders made of protein that provide structral support for eukaryotic cells.
  11. 25. numerous, hairlike projections composed of pairs of microtubules; frequently aid in locomotion.