Biology Extra Credit

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Across
  1. 2. folds inside mitochondria that increase surface area.
  2. 3. said all cells come from other cells.
  3. 4. jelly-like fluid inside the cell where organelles are found.
  4. 5. provide strength and support.
  5. 7. makes energy (ATP) for the cell.
  6. 8. discovered cells by looking at cork under a microscope
  7. 11. control center of the cell; contains DNA.
  8. 17. long, whip-like tail used for movement.
  9. 18. describes the cell membrane as flexible and made of many moving parts.
  10. 19. a small structure inside a cell that has a specific job.
  11. 21. makes lipids and helps detoxify the cell.
  12. 26. first to observe living cells under a microscope
  13. 28. short, hair-like structures that move substances or the cell.
  14. 29. fluid inside the mitochondria.
  15. 30. network of fibers that gives shape and helps movement.
  16. 32. the smallest unit of life that can carry out all life processes
  17. 34. said all plants are made of cells.
  18. 35. states that all living things are made of cells, cells are the basic unit of life, and all cells come from other cells.
  19. 38. the liquid part of the cytoplasm (without organelles).
  20. 41. on rough ER; make proteins for export or membranes.
  21. 42. makes ribosomes inside the nucleus.
  22. 43. a simple cell without a nucleus (like bacteria).
  23. 44. does photosynthesis (makes food from sunlight).
  24. 45. break down fats and detoxify harmful substances.
  25. 46. plastid that gives plants red, orange, or yellow color.
Down
  1. 1. compares a cell’s surface area to its volume; limits how big a cell can get.
  2. 6. said all animals are made of cells.
  3. 9. organelles in plant cells that store or make food.
  4. 10. rigid layer outside the cell membrane that supports plant cells.
  5. 12. fluid around the thylakoids inside chloroplasts.
  6. 13. colorless plastid that stores starch.
  7. 14. the outer layer that controls what enters and leaves the cell
  8. 15. float in cytoplasm and make proteins used inside the cell.
  9. 16. break down waste and old cell parts.
  10. 20. thin threads that help the cell move and keep its shape.
  11. 22. disk-shaped part inside chloroplasts that holds chlorophyll.
  12. 23. stacks of thylakoids.
  13. 24. a complex cell with a nucleus and organelles.
  14. 25. large sac that stores water and helps keep cell shape.
  15. 27. double membrane that surrounds the nucleus.
  16. 31. thick tubes that help with structure and movement.
  17. 33. strands of DNA and proteins found in the nucleus.
  18. 36. has ribosomes; helps make and transport proteins.
  19. 37. green pigment that captures sunlight.
  20. 39. help with cell division in animal cells.
  21. 40. packages and ships proteins and lipids.