Across
- 3. strands of DNA in the nucleus
- 8. scientist that said “all animals are made of cells”
- 10. found in red meats and fish and nuts, needed by cells
- 11. living cells are produced from ___ living cells
- 12. a group of cells working and doing the same function make a ____
- 13. transport through a cell that doesn’t require energy is called this type of transport
- 14. all the small structures within the cell that each have their own function are called this
- 16. a widely accepted explanation of the relationship between cells and living things
- 19. taking in large particles by the cell require this process to happen where the cell membrane will surround the particle and engulf it
- 21. the rigid layer that surrounds plant cells and some bacterial cells
- 22. the nucleus is surrounded by a nuclear _____
- 24. elements bonded together make these
- 30. the green pigment that can be found in some chloroplasts is called this
- 31. the passing of water from an area of high concentration to a lower concentration
- 32. found within the nucleus, makes ribosomes
- 34. organs working together make __ ___
- 36. a single cell has the same needs as an ____ organism
- 37. inside the cell, helps the cell maintain its shape, looks like fibers and tubules
- 38. this type of diffusion uses a protein channel to get big things through the cell membrane
- 40. organelle that receives things from the ER, it changes them and packages them
- 41. scientist that said “all cells come from other cells”
- 43. focusing on an object to get a sharp image is called good _____
- 44. cells are the basic units of structure and function in all ___ things
- 46. this type of electron microscope shows 3D images
- 49. found in breads and pastas, needed to make cells membranes
- 50. controls what enters and exits the cell
- 51. these organelles aid in cell division, there are 2 of them in a cell
- 53. organelle that converts food into energy
- 54. transport that does require energy to move things in and out of the cell
- 56. going from an area of high concentration to one of lower concentration
- 57. organelles that make proteins
- 58. electron microscopes use a ___ of electrons to magnify an image
Down
- 1. scientist that said “all plants are made of cells”
- 2. a network of membranes near the nucleus that takes the proteins the ribosomes makes and changes them to usable molecules
- 4. endoplasmic reticulum that has ribosomes embedded in it is called ____ ER
- 5. storage organelle for the cell, very large in plant cells
- 6. found in seafood and vegetables, needed for the cells to make new DNA
- 7. looked at pond water and saw living organisms
- 9. our bodies are 70 percent ___
- 13. the cell membrane is also sometimes called the ___ membrane
- 15. process of removing large particles form the cell
- 17. what von Leeuwenhoek called the tiny organisms he saw in pond water
- 18. what the cell wall is made of- makes it strong
- 20. the cell membrane is selectively ____, which means it lets some things in and not others
- 23. organelle that breaks down materials for the cell
- 25. this type of electron microscope shows inside the cell
- 26. organelle that takes sunlight, carbon dioxide and water and makes food for the cell
- 27. all ___ ___ are composed of cells
- 28. the control center of the cell
- 29. any substance that cannot be broken down into a simpler substance
- 30. this type of microscope uses light and lens to magnify specimens (3 words)
- 33. cells that perform a specific function are called ___ cells
- 35. an instrument that makes objects appear larger
- 39. thick fluid through which the organelles move in a cell
- 42. the basic units of structure and function in all living things
- 45. proteins that speed up chemical reactions are called this
- 47. a lens that is thicker in the middle is called this type of lens
- 48. scientist that looked at cork and termed the use of the word “cell” for the structures he saw
- 52. water in the cell helps keep the cell’s ___ stable
- 55. compounds found in fats and oil, used for making new cell membranes