1. CELLS

2. Cells are living units that move, grow, react, protect themselves, and reproduce.

3. In a single drop of blood, more than one million cells exist.

4. Human Cells blood cells muscle cells nerve cells bone cells skin cells

7. Parts of the Cell

9. NUCLEUS

10. Cells have a round core called the nucleus. The nucleus is the “brain” of the cell.

11. It tells the cell how to reproduce and what function each part of the cell is responsible for performing.

12. nuclear membrane thin coating that covers the nucleus. It is covered with small holes called nuclear pores.

13. These pores allow material to be passed back and forth between the nucleus and the rest of the cell.

14. NUCLEAR PORES NUCLEAR MEMBRANE

15. cytoplasm gel-like substance that floats between nuclear membrane and the thin outer shell of the cell called the cell membrane.

16. Cytoplasm supports the shape of the cell and keeps floating pieces in place.

17. It also has chemicals and protein particles in it that help keep the cell alive.

18. cytoplasm

19. cell membrane helps keep shape of the cell and controls entry of oxygen into the cell and waste products out of the cell.

20. Inside the cell there are nine primary types of structures.

21. mitochondria powerhouse of the cell that stores energy like a battery until it is needed by the cell

22. Its function is to break food particles down into energy and then store this energy the cell will need to reproduce and survive.

25. mitochondria

26. Golgi bodies stacks of flat sacks

28. Golgi bodies store protein and transport it and chemicals to other parts of the cell.

29. GOLGI BODIES

31. nucleolus small sphere inside the nucleus that manufactures ribosomes

32. NUCLEUSNUCLEUS NUCLEOLUSNUCLEOLUS

33. ribosomes small,round shapes that make protein

34. RIBOSOMESRIBOSOMES

36. endoplasmic reticulum hollow sheets of thin material where ribosomes are attached

39. vacuoles round bubble-like structures that contain water and dissolved minerals

40. VACUOLEVACUOLE

41. Vacuoles are fairly small in animal cells. Plant cells contain huge vacuoles.

42. lysosome digestion center of the cell digests particles that may be harmful to the cell

43. LYSOSOME

44. microtubules hollow cylinders that help shape and support cell

45. MICROTUBULES

47. centrioles help with cell reproduction

48. CENTRIOLECENTRIOLE

49. Animal Plant no chloroplast small temporary vacuoles flexible cell membrane chloroplast large permanent vacuoles rigid cell wall

51. REVIEWREVIEW

52. nucleolus

53. nucleus

54. endoplasmic reticulum

55. Golgi body

56. mitochondria

57. vacuole

58. centrioles

59. cytoplasm

60. cell membrane

61. CellReproduction

62. All cells are a result of the division of a cell that already exists.

63. To reproduce, a cell must duplicate the exact chromosomes that are in the nucleus.

64. These chromosomes are in pairs. They contain all the genetic information needed to control the function of the cell.

65. The genetic information in the chromosomes is called DNA.

66. During reproduction, a cell divides into two new cells that have the same DNA and chromosomes.

67. The end result is two cells that have exactly the same DNA and chromosomes.

68. They are EXACT copies of each other.