Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
CHAPTER NEW CHAPTER Cell Division the BIG idea Organisms grow, reproduce, and maintain themselves through cell division. 3.1 Cell division occurs in all organisms. 3.2 Cell division is part of the cell cycle. 3.3 Both sexual and asexual reproduction involve cell division. CHAPTER OUTLINE CHAPTER RESOURCES 3.1 CHAPTER HOME KEY CONCEPT Cell division occurs in all organisms. • In unicellular organisms functions of cell division include reproduction • In multicellular organisms functions of cell division include growth, development, and repair. break in skin new cells pushed up to fill cut wound is healed dividing cells new cell layers cells stop dividing VOCABULARY DNA chromosome CHAPTER RESOURCES SECTION OUTLINE 3.2 CHAPTER HOME KEY CONCEPT Cell division is part of a cell cycle. The cell cycle has two main phases, interphase and mitosis. Most of the life cycle of a cell is spent in interphase. During mitosis, cells divide. VOCABULARY cell cycle interphase mitosis cell grows and carries out normal activities; organelles duplicate cytokinesis DNA replicates and chromosomes duplicate cell grows and prepares for mitosis CHAPTER RESOURCES SECTION OUTLINE 3.2 CHAPTER HOME KEY CONCEPT Cell division is part of a cell cycle. The cell cycle has two main phases, interphase and mitosis. Most of the life cycle of a cell is spent in interphase. During mitosis, cells divide. VOCABULARY cell cycle interphase mitosis VISUALIZATION VISUALIZATION Match images of cells dividing with the different stages of cell division. CLASSZONE.COM cytokinesis Watch the process of mitosis in action. CHAPTER RESOURCES SECTION OUTLINE 3.3 CHAPTER HOME KEY CONCEPT Both sexual and asexual reproduction involve cell division. Some organisms reproduce asexually. Both asexual and sexual reproduction involve cell division. VOCABULARY asexual reproduction binary fission Comparing Asexual and Sexual Reproduction regeneration Asexual Reproduction Sexual Reproduction Cell Division Cell division and other processes One parent organism Two parent organisms Rate of reproduction is rapid Rate of reproduction is slower than rate for asexual reproduction Offspring identical to parents Offspring have genetic information from two parents CHAPTER RESOURCES SECTION OUTLINE 3.1 KEY CONCEPT CHAPTER HOME Cell division occurs in all organisms. I. Cell division occurs in all organisms. VOCABULARY DNA A. Cell division is involved in many functions. chromosome B. The genetic material of eukaryotic cells is organized in chromosomes. 1. DNA 2. Chromosomes C. Cell division is involved in growth, development, and repair. 1. Growth 2. Development 3. Repair CHAPTER RESOURCES KEY CONCEPT SUMMARY 3.2 KEY CONCEPT CHAPTER HOME Cell division is part of a cell cycle. II. Cell division is part of a cell cycle. VOCABULARY cell cycle A. The cell cycle includes interphase and cell division. 1. Interphase 2. Cell Division Phase interphase mitosis cytokinesis B. Cell division produces two genetically identical cells. 1. Steps of Mitosis 2. Division of the Cytoplasm CHAPTER RESOURCES KEY CONCEPT SUMMARY 3.3 KEY CONCEPT CHAPTER HOME Both sexual and asexual reproduction involve cell division. III. Both sexual and asexual reproduction involve cell division. A. Asexual reproduction involves one parent. 1. Cell Division in Unicellular Organisms VOCABULARY asexual reproduction binary fission regeneration 2. Budding 3. Regeneration 4. Asexual Reproduction and Health B. Sexual reproduction involves two parent organisms. CHAPTER RESOURCES KEY CONCEPT SUMMARY CHAPTER HOME Image Gallery Click on the icons to see a larger image or animation. VISUALIZATION VISUALIZATION Match images of cells dividing with the different stages of cell division. CLASSZONE.COM Watch the process of mitosis in action. CHAPTER HOME Chapter Resources Image Gallery Review Game Animations Click here to review chapter images and animations Play a fun interactive review game Link to all the McDougal Littell Science animations Click on the items below to access resources on Audio Readings Resource Centers Hear chapter audio readings Get more information on select science topics Content Review Standardized Test Practice Review key concepts and vocabulary 4 % CE 7 1 0 2 6 5 4 3 9 8 3 2 . Math Tutorial M+ M– M CC ON/C 5 1 CLASSZONE.COM Review math concepts BACK TO CHAPTER Practice state standardized tests