1. Chapter 5: Cell Growth and Division MA 2.6 The cell cycle and mitosis in asexual reproduction. Big Black Book pages 124-151

2. *two page notebook format* Do Now: 1) Why do we have to cut our hair and fingernails? Where does the extra hair come from? 2) Read Page 125 Reading Toolbox: Cause and Effect. Do problems 1-3 Topic: Cell Growth and Division Objectives, language obj: Describe the stages of the cell cycle. Compare rates of division in different cell types Identify factors that limit cell size Lang. Obj. Use the terms cell cycle, mitosis, stage, parent cell, daughter cell, cytokinesis, and surface to volume ratio orally and in writing, supported by reference text and modeling Page 47Tuesday, Dec 9, 2014 Page 48

3. Why do we have to cut our hair and fingernails? Where does the extra hair come from?

4. Read Page 125 Reading Toolbox: Cause and Effect. Do problems 1-3 Identify the cause and effect… 1)People often shiver as a result of being cold. 2)The light got brighter, so the pupil of the eye got smaller. 3)If the cell passes the G2 checkpoint, then the cell may begin to divide.

5. The Cell Cycle has 4 main stages p 127 StageWhat happens?Checkpoint? Gap 1 (G1) Synthesis (S) Gap 2 (G2) Mitosis (M)

6. Cells divide at different rates p 128 Cell TypeApproximate Life Span Skin cell Red blood cell Liver cell Intestine – internal lining Intestine – muscle and other tissues

7. Cell size is limited p 128-9 Mini lab: Surface to Volume Ratio. Answer Compare on page 129. Build small boxes using small box net Surface area of small box S.A. = Volume of small box V = Surface to volume ratio Build large boxes using large box net Surface area of large box S.A. = Volume of large box V = Surface to volume ratio

8. 5.1 Formative Assessment Answer questions 1, 3, 5, and 6 on page 129. Answer Study Guide questions on page 43 in class using the Big Black Book. SUMMARIZE what you learned today in 3-5 sentences Homework: Study Guide 5.1 questions 5-13 Review Greek and Latin word roots Make up take home quiz if not taken in class