Biology Overview: This unit examines the processes of mitosis and meiosis and their roles in growth and reproduction. Unit Title Set: 6 Cell Growth and Reproduction MITOSIS AND MEIOSIS—7 Days Unit Essential Question: How do new cells arise from the division of pre-existing cells? Unit Concepts As Guided Reading *What students need to know Cell cycle in a non-reproductive, eukaryotic cell o Interphase G1 S G2 o Nuclear division Mitosis o Cytokinesis Plant vs. animal cell Phases of mitosis: prophase, metaphase, anaphase, telophase Phases of meiosis in diploid, germ-line stem cells Importance of mitosis and meiosis Outcomes of mitosis and meiosis Importance of chromosome composition and number in controlling phenotype Unit Competencies As Do Now’s * What students need to be able to do (skills) 1. Describe the events that occur during the cell cycle. 6. Compare and contrast the processes and outcomes of mitotic and meiotic nuclear divisions. 7. Describe processes that can alter composition or number of chromosomes (chromosomal mutations). CELL GROWTH AND REPRODUCTION-MITOSIS/MEIOSIS 1. 2. 3. 4. 5. Every reading assignment is expected to be completed BEFORE you come to class. Confused about the reading? Prepare questions to ask in class AS YOU READ. Be a Scout and Be Prepared…Reading quizzes may be given at ANY time. Homework is due ON THE DUE DATE (Sectionals—Turn in on the due date…Field trips and illnesses—turn in on your first day back.). Do Now’s are to be completed in class and turned in THAT BLOCK. (Absent??—Turn in first day back. Questions on the reading that goes with the Do Now??—Turn in written question specifying what you don’t understand. Be specific. Don’t say, “I don’t get it”.) Vocabulary understanding is necessary. Attend to the words at the beginning of each chapter, or words that you encounter that are new to you. 6. **In order for you to participate in structured activities and labs, you must have your Guided Reading up-to-date as well as your vocabulary. 7. Day 1 2 3 4 5 6 7 Labs are to be read beforehand. Lesson Guided Reading-any questions? Cell cycle-Purpose Computer-Cells Alive! Cells Alive Cell Cycle Worksheet Guided Reading-any questions? Vocabulary Labels for the lab Guided Reading-any questions? Mitosis-Purpose/Process Cell slides Mutations-Cause/Effect Mitosis: Computer-Cells Alive!, Crash Course Vocabulary Guided Reading-any questions? Cells Alive! Mitosis Worksheet Mitosis Microscopy-#of cells/IPMATC Vocabulary Guided Reading-any questions? Meiosis-Purpose/Process Cell slides Mutations-Cause/Effect Meiosis: Computer-Cells Alive!, Crash Course Vocabulary Guided Reading-any questions? Cells Alive! Meiosis Worksheet Meiosis Microscopy-Yeast Bear 151 Vocabulary Lab-Mitosis/Meiosis Homework Read: 6.1 Chromosomes 6.2 The Cell Cycle Read: 6.3 Mitosis and Cytokinesis Read: Understanding Cancer p.138-9 / DUE Read : 6.1, 6.2 Chromosomes, The Cell Cycle Read : 6.3 Mitosis Cytokinesis Vocab : 5 words Read: 7.1 Meiosis Read : p. 138-9 Cancer Read: 7.2 Sexual Reproduction Read : 7.1 Meiosis Vocab : 5 words Read : 7.2 Sexual Reproduction Vocab : 5 words Mitosis/Meiosis Lab *DUE: Vocab, Mit/Mei Lab, Reading Cell Growth and Reproduction—Vocabulary Directions: Title the middle column, ‘Mitosis’ and the right column ‘Meiosis’. Put an ‘X’ in the appropriate column(s) for all words that describe each. Choose ten words from Mitosis and ten words from Meiosis. Use plain paper to make four blocks each, a total of five pieces of paper. Write the word VERY LARGE in highlighter/magic marker on one side, and the definition in smaller pencil print on the back. Words will be used to play ‘hopscotch’. anaphase asexual cell cycle cell plate centrioles chromatin chromatid chromosomal mutation chromosome cleavage furrow crossing over cytokinesis daughter cells deletion diploid duplication gametes germ-line cells haploid homologous chromosomes independent assortment insertion interphase inversion meiosis metaphase mitosis nondisjunction prophase sexual somatic cells spindle (fiber) telophase tetrad translocation zygote CELL GROWTH AND DEVELOPMENT-GUIDED READING _________Score Name________________________ 6.1 Chromosomes, Formation of New Cells by Cell Division Directions: Do A or B Mark an ‘X’ on the line at A or B to show your choice. ________A. Makin’ Models—Make a model for each of the concepts. Remember a title and labels. ________B. Make It a Match!!—Make a matching ‘quiz’ for each of the concepts. Use the following words: Cell division gametes binary fission Gene chromosome chromosome Chromatid Coil Further coil DNA with proteins DNA Double Helix Centromere CELL GROWTH AND DEVELOPMENT-GUIDED READING Page 2 How Chromosome Number and Structure Affect Development Directions: Do A or B. Mark an ‘X’ on the line at A or B to show your choice. ___________A. Compare and Contrast It: Make a 3-column (Haploid/Both/Diploid) chart comparing and contrasting Haploid and Diploid cell reproduction. Use ideas from Fig. 3 and Fig 5 as part of your chart. Across the bottom make a block the whole way across the paper. Title it with the heading: Prokaryotic Binary Fission. Write a 3-sentence summary of prokaryotic binary fission. ___________B. Make an outline: for your reading (you don’t need sentences in an outline). Use the following skeleton set-up for it. 1. Sets of Chromosomes, 2. Sex Chromosomes, 3. Prenatal Testing, 4. Change in Chromosome Structure. CELL GROWTH AND DEVELOPMENT-GUIDED READING Page 3 6.2 The Cell Cycle Do BOTH of the following: A. Directions: Divide your paper into a ‘T’. At the top, title it, “Cell Cycle”. On the left, Write ‘The Eukaryotic Cell Cycle’, and number 1 through 5. On the right, write ‘Control of the Cell Cycle’, and number 1through 3. Tell what is happening in each. At the bottom of the left column, copy Fig. 6, and at the bottom of the right, Fig. 7. B. Read: p. 127, Exploring Further: Cancer. Briefly (6-8 sentences) explain the problem, cause, and effect. B. Cancer: Problem: Cause: Effect: CELL GROWTH AND DEVELOPMENT-GUIDED READING Page 4 6.3 Mitosis and Cytokinesis Do BOTH A and B. A. Do the section 6.3 Review questions 1 through 4. Rephrase the question in your answer. Use complete sentences. B. Read: Understanding Cancer p.138-139. Write an infomercial in three sections corresponding to the reading sections. You may include personal information about someone you know who has/had cancer. CELL GROWTH AND DEVELOPMENT-GUIDED READING Page 5 7.1 Meiosis and Sexual Reproduction Directions: Do A or B. Mark an ‘X’ on the line at A or B to show your choice. ___________A. Makin’ Lists: Title your answer—Meiosis. Number 1through 8 on the left-hand side (leave a two-finger margin) of the paper. Write the phases by each number. LIST what happens. Be sure to include crossing-over and define it. ___________B. Color Me Meiosis Copy Fig 1, using colored pencils (get them from your teacher if you need them). Don’t forget the explanation 1-8. CELL GROWTH AND DEVELOPMENT-GUIDED READING Page 6 Meiosis and Gamete Formation Do the following: Read p. 148-149. Copy Fig 3. Tell what happened to the ‘other’ eggs as an explanation. CELL GROWTH AND DEVELOPMENT-GUIDED READING Page 7 7.2 Sexual Reproduction Sexual and Asexual Reproduction Directions: Do A or B. Mark an ‘X’ on the line at A or B to show your choice. ___________A. Sexual vs Asexual, The Good, Bad, and Ugly. Write a position argument. In it, point out the positive and negative benefits of both. Write a concluding statement telling which you think is more effective, and why. ___________B. Time Out. Make a possible time line (you don’t need dates, just relative position on a line) showing the progression from asexual to sexual reproduction. Don’t forget that many current organisms still reproduce sexually, and that some utilize both strategies at different stages in their life cycles. CELL GROWTH AND DEVELOPMENT-GUIDED READING Page 8 Sexual Life Cycles in Eukaryotes AND Alternation of Generations Directions: Do A or B. Mark an ‘X’ on the line at A or B to show your choice. ___________A. Dr. Jekyll and Mr. Hyde?? Describe how organisms (give examples) may have both haploid and diploid cells. Include content from the ‘Exploring Further: Cloning by Parthenogenesis. ___________B. Copy Cat Cloning. Copy Fig. 6, Fig. 7, and Fig. 8. Use stick figure heads. For each haploid/diploid model, include a cell with the appropriate contents for an organism with one chromosome. Include a ‘disclaimer’ statement and indicate which (n, or 2n) this is an example of. CELL GROWTH AND REPRODUCTION—MITOSIS AND MEIOSIS __________SCORE Name____________________________ Remember to rephrase the question in your answer. Use complete sentences. Use punctuation. 1 6 7