Science Vocabulary #5

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Across
  1. 4. The pressure exerted by water in a full central vacuole upon the cytoplasm and cell membrane of a plant cell
  2. 7. describes cells having a true nucleus as well as membrane-bound organalles
  3. 9. describes a solution whose solute concentration is less than the solute concentration of the cytoplasm in a cell
  4. 11. A group of two or more organs that work together to prefrom a particular function
  5. 13. A group of cells that are specialized to preform a specific function
  6. 14. A celluar organalle found in plant cells that contains the chlorphyll and is the site where photosynthesis takes place
  7. 15. describes a solution whose solute concentration is greater than the solute concentration of the cytoplasm in a cell
  8. 16. The diffusion of water molecules through a semi-permeable membrane
  9. 17. A non-pigmented celluar organalle found in plant cells whose function s include storing starches, lipids and protiens
  10. 18. A celluar organalle that functions in the organization of microtubules
  11. 20. Structures found within the cytoplasm of cells that preform the various functions cells need to stay alive
  12. 21. The non-membrane-bound region in prokaryotic cells that contains most of the gentic material
  13. 22. An organalle in plant cells that holds materials and helps maintain the cell's shape through turgor pressure
  14. 25. Individual organisms of the same species living closely together; a group of cells that live/work together
  15. 28. describes a solution whose solute concentration is equal to the solute concentration of the cytoplasm in a cell
  16. 29. One of the ffundamentalmodels of biology that states that cells are the smallest form of life, come from preexisting cells, are basic building blocks of all life forms
  17. 31. An organism consisting of two or more cells but those cells cannot live on their own
  18. 33. the two layers of phospholipids that make up a cell membrane
  19. 34. A short hair like extension of a cell used either for movement or as a sensory organalle
  20. 35. A celluar signaling mechanism in which the product of a particular process enhances the process itself
  21. 36. A thin layer of phospholipids and protiens that defines the boundry of a cell
  22. 37. The movement of substances across a cell membrane with the need for energy
  23. 38. A whip-like celluar organalle similar in structure to a cilium but longer and used primarily for movement in bacteria
  24. 40. the celluar organalle in which aerobic respiration takes place to release energy from food
  25. 41. a type of passive transport in which substances can move across a cell membrane through special protien channels embedded in the membrane
  26. 42. the celluar organalle that processes and packages protiens in prepartation for secreting them from a cell
Down
  1. 1. describes cells lacking a true nucleus and membran bounding organalles
  2. 2. the movement of substances across a cell membrane from regions of low concentration to regions of high concentration by any means requires the use of energy
  3. 3. a celluar organalle that contains digestive enzymes
  4. 5. transports compounds around the cell and helps maintain the cells shape
  5. 6. The structure within the cells that helps define their shape, maintains interal organization, and aids division and movement
  6. 8. The thick fluid inside of cells that contains the organalles
  7. 10. A protective coating found outside the cell walls of many bacteria
  8. 12. the celluar organalle that directs the protien-building process
  9. 15. the internal balance within the systems of living organisms that must be kept stable in order to maintain life
  10. 18. A rigid structure made by cells of plants, fungi, and most bacteria to surround the cell membrane
  11. 19. processes fats and breaks down toxic substances in liver cells
  12. 23. a spherical structure withihn eukaryotic cell's nucleus where ribosomes are manufactured
  13. 24. the membrabe bound region of a eukaryotic cell that contains the genetic material
  14. 26. A celluar signaling mechanism in which the product of a particular process inhinits the process itself
  15. 27. A stack of disk-shaped thylakoids with a chloroplast
  16. 30. A structure made of two or more tissues that work together to preform a particular function
  17. 32. A organism consiting of only one cell
  18. 39. The genetic material of eukaryotic cells consisting of DNA and associated protiens