Cells and Cell Theory

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Across
  1. 1. The diffusion of water.
  2. 5. Large organic compound that is made of oxygen, carbon, nitrogen and sometimes sulfur.
  3. 8. Oragnelle that controls what goes in and out of a cell.
  4. 11. Type of active transport where the cell releases a large substance with the help of the vesicle.
  5. 12. Makes up the internal framework of the cell, gives cell its shape
  6. 14. Jelly-like substance where organelles are found.
  7. 16. Substances cannot pass through the cell membrane on their own and therefore need the help of a transport protein.
  8. 19. Type of active transport that engulfs substances by surrounding it with the cell membrane.
  9. 21. A cell's membrane is _____ permeable, it allows some substances to pass through while others cannot.
  10. 22. Green pigment found in the chloroplast.
  11. 23. Type of cell that has no nucleus or membrane bound structures and is found in unicellular organisms.
  12. 25. Tiny cell structure that carries out a specific function within the cell.
  13. 28. Looked at living cells for the first time by looking at a drop of pond water.
  14. 30. Produces proteins
  15. 33. Powerhouse of the cell, converts food into energy
  16. 34. Acts as the brain of the cell
  17. 36. Has ribosomes attached and makes proteins
  18. 37. Package and sort proteins
  19. 40. Cell that fights and fights infections
  20. 41. Type of transport where substances move from low concentration to high.
  21. 43. Rigid layer that surrounds a plant cell, give the cell its shape.
  22. 46. Type of protein that speeds up a chemical reaction
  23. 48. Contains many tubes to soak up water, contains no chloroplasts
Down
  1. 2. Was a botanist who concluded that all plants are made up of cells
  2. 3. Process by which molecules move from an area of high concentration to an area of low concentration.
  3. 4. DNA and RNA are examples of
  4. 6. Organelle that stores liquid and other substances.
  5. 7. Said that all cells come from other living cells.
  6. 9. Contains a lot of chloroplasts to change sunlight into energy
  7. 10. Controls what goes in and out of the cell nucleus
  8. 13. No ribosomes attached and processes other cellular substances.
  9. 15. Cell that can contract and extend, has a lot of mitochondria
  10. 17. A zoologist who concluded that all animals are made up of cells.
  11. 18. Capture energy from sunlight and converts it to energy.
  12. 20. Type of transport that does not require energy.
  13. 24. Compound that contains any element besides carbon.
  14. 26. Cell that carries oxygen around the body, has no nucleus
  15. 27. Organic compound that contains hydrogen, oxygen and carbon that is responsible for short term energy
  16. 29. Type of cell that contains a nucleus and is found in multicellular organisms
  17. 31. Structure that makes ribosomes
  18. 32. Organelle that helps move substances around the cell.
  19. 35. Basic unit of structure and function in living things.
  20. 38. Organelle that breaks down food, waste and worn out parts.
  21. 39. Compound that always contains hydrogen, and carbon
  22. 42. Most chemical reactions cannot occur without this inorganic compound.
  23. 44. Fats, oils and waxes that are responsible for long term energy
  24. 45. Long and branched, sends messages to the brain
  25. 47. Saw cells for the first time by looking at a piece of cork.