Chapter 5 Crossword Puzzle

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Across
  1. 4. theory - one of the fundamental models of biology that states that cells are the smallest form of life, come from pre-existing cells, are the basic building block of all life forms, and carry out life processes to maintain homeostatis
  2. 6. - the cellular organelle that directs the protein-building process
  3. 10. - a protective coating found outside the cell walls of many bacteria
  4. 12. - (1) the membrane-bound region of a eukaryotic cell that contains the genetic material.(2) the central portion of an atom where protons and neutrons are located
  5. 14. - a cellular organelle that functions in the organization of microtubles
  6. 16. organism - an organism consisting of two or more cells and whose cells may not live independently apart from the organism
  7. 18. - a structure made of two or more tissues that work together to perform a particular function
  8. 20. - describes cells lacking a true nucleus and membrane-bound organelles
  9. 21. - the thick fluid inside cells that contains the organelles. also called the cytosol
  10. 22. pressure - the pressure exerted by water in a full central vacuole upon the cytoplasm and cell membrane of a plant cell; maintains plant rigidity
  11. 24. - a group of cells that are specialized to perform a particular function
  12. 27. organism - an organism consisting of only one cell
  13. 28. system - a group of two or more organs that work together to perform a particular function
Down
  1. 1. - a spherical structure within a eukaryotic cell's nucleus where ribosomes are manufactured
  2. 2. apparatus - the cellular organelle that processes and packages proteins in preparation for secreting them from a cell
  3. 3. - the genetic material of eukaryotic cells consisting of DNA and associated with proteins
  4. 5. - a cellular organelle that contains digestive enzymes
  5. 7. - the non-membrane-bound region in the prokaryotic cells that contains most of the genetic material
  6. 8. - a cellular organelle found in plant cells that contains the pigment chlorophyll and is the site where photosynthesis takes place
  7. 9. - a whip-like cellular organelle similar in structure to a cilium but longer and used primarily for movement in many bacteria
  8. 11. - a non-pigmented cellular organelle found in plant cells whose functions include storing starches, lipids, and proteins
  9. 13. endoplasmic reticulum - the cellular organelle that consists of a network of membranes used to transport substances throughout a cell and is studded with ribosomes
  10. 14. - (1) individual organisms in the same species living closely together (2) a group of cells that live and work together. unlike in a multicellular organism, cells in a colony may break away and survive on their own
  11. 15. vacuole - an organelle in plant cells that holds materials and helps maintain the cell's shape throughout turgor pressure
  12. 17. bilayer - the two layers of phospholipids that make up a cell membrane
  13. 19. - a stack of disk-shaped thylakoids within a chloroplast
  14. 21. wall - a rigid structure made by cells of plants, fungi, and most bacteria to surround the cell membrane
  15. 23. - structures found within the cytoplasm of cells that perform the various functions cells need to stay alive
  16. 25. endoplasmic reticulum - the cellular organelle that consists of a network of membranes used to transport substances throughout a cell and is not studded with ribosomes
  17. 26. - describes cells having a true nucleus as well as membrane-bound organelles