Biology HONORS Overview: This unit examines the processes of mitosis and meiosis and their roles in growth and reproduction. Unit Titl: 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) 3a. Describe the events that occur during the cell cycle. 3b. Compare and contrast the processes and outcomes of mitotic and meiotic nuclear divisions. 4. 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 Labs are to be read beforehand. LESSON Guided Reading-Self Scored Kahoot HOMEWORK/DUE Read: 8.1 Chromosomes 8.2 The Cell Cycle, Mitosis, Cytokinesis p. 158-9 Cancer 8.3 Meiosis, Development of Gametes, Sexual Reproduction Watch: Cells Alive! Amoeba Sisters Remaining videos 3-4 Cell cycle-Purpose Mitosis/Meiosis/Cytokinesis HO: Amoeba Sisters/Cells Alive Worksheets Lab: Play-doh DUE Day 4: GR with Corrections DUE Day 4: Do Now’s 5-7 Lab: Making the process game DUE Day 7: Game Time! eval Test date to be determined Mitosis Meiosis videos Crash course Mitosis http://www.youtube.com/watch?v=L0k-enzoeOM Meiosis http://www.youtube.com/watch?v=qCLmR9-YY7o Bozeman Mitosis http://www.youtube.com/watch?v=1cVZBV9tD-A Cell Cycle, Mitosis, Meiosis http://www.youtube.com/watch?v=2aVnN4RePyI Meiosis http://www.youtube.com/watch?v=rB_8dTuh73c Mitosis Meiosis Bead Simulation http://www.youtube.com/watch?v=zGVBAHAsjJM Amoeba Sisters Mitosis- https://www.google.com/webhp?sourceid=chromeinstant&ion=1&espv=2&ie=UTF-8#q=amoeba%20sisters%20mitosis Meiosis- https://www.google.com/webhp?sourceid=chromeinstant&ion=1&espv=2&ie=UTF-8#q=amoeba%20sisters%20meiosis Cell Cycle and Cancer- https://www.youtube.com/watch?v=lpAa4TWjHQ4 Cells Alive-Cell Cycle http://www.cellsalive.com/cell_cycle.htm Mitosis/Meiosis/Cell Cycle Vocabulary Directions: Decide if a vocab word describes a stage in Mitosis, Meiosis, Both, Cytokinesis, or ‘Other’. You will color-code the words based on this key: MIT/MEI/CYT/OTHER KEY STEP COLOR Mitosis Blue Meiosis Green Both Red Cytokinesis Orange Other Purple VOCABULARY 1. Binary Fission-A simple copying of DNA in the cytoplasm, then division of the entire cell, each with one copy of the DNA. Occurs in Prokaryotes. 2. Cell Cycle-The series of events that take place in a cell leading to its division and duplication. The main phases of the cell cycle are interphase, nuclear division, and cytokinesis. 3. Crossing-Over-In Prophase, an arm from an homologous pair may lay across its sister chromatid. This may result in a fragment from each breaking off and switching places with each other. Leads to more variation in offspring. 4. Cytokinesis-The final phase of a cell cycle resulting in the division of the cytoplasm. 5. Endosymbiosis-A theorized process in which early eukaryotic cells were formed from simpler prokaryotes. 6. Gamete-A specialized cell (egg or sperm) used in sexual reproduction containing half the normal number of chromosomes of a somatic cell. 7. Interphase-The longest-lasting phase of the cell cycle in which a cell performs the majority of its functions, such as directing protein making, preparing for nuclear division and cytokinesis. 8. Metaphase-Phase in which chromosomes line up in the middle (equator). 9. Meiosis-A two-phase nuclear division that results in the eventual production of gametes with half the normal number of chromosomes. 10. Mitosis-A nuclear division resulting in the production of two somatic cells having the same genetic complement as the original cell. 11. Zygote-A fertilized egg. Cell Cycle and Cell Division Game-Making Directions: 1. You and your lab partners will make a game that utilizes the vocabulary words, content of the Guided Reading, videos, Play-doh and other activities for one particular process. The processes are those that you color-coded for your vocabulary words. 2. Read the Self-Evaluation Grading Rubric for the game to be sure you understand the Domains for which each person will be graded (24 points). In the ‘Evidence’ column of the grading rubric: a. Write your: two vocab word questions, sketch the model, write the reference, what part of the game board you made, answers to your two vocab and one model question, the game directions you suggested that were used. 3. Read the Game Evaluation From the Players to understand how your game will be evaluated by your peers. 4. Read the Teacher Evaluation form to understand how I will be evaluating your group contribution (10 points). 5. In your group, decide what kind of game you are going to play and tell me. Once that kind of game is ‘taken’, it cannot be used again in this class. 6. Each partner is responsible for contributing to all but the last domain. Keep track of what you do on your grading rubric as you do it. 7. Use materials that are on the supply table, or ask me for additional goodies. 8. You have two days to plan, create, and do a dry run of your game. 9. On the third day, you will leave your game on a lab bench and rotate to a different lab bench to play the game that is there. 10. You will complete a Game Evaluation From Peer Players on the game you play that was made by others in your class. 11. Your total score will be a combination of your self-evaluation, my evaluation, and the average of the peer evaluations (10 total points for the peer evaluation). Group ‘Job’ Descriptions Facilitator- Every group needs a coordinator who will support others in getting their tasks accomplished. The facilitator may be the ‘go to’ person for content material as well. The facilitator takes responsibility to ask the teacher for help on behalf of the team. Graphic Design-Person with ability/interest in doing a layout for the game board. Takes suggestions of other team members into account. Software Expert-Person who oversees computer word program input of questions, answers, answer key, labeling, model paste/cut, etc. Timekeeper- Person who keeps group members moving along, cleaning up before the end of the block. Responsible for encouraging team to complete task on time. Mitosis/Meiosis/Cell Cycle Game-Making Self Evaluation Rubric Game Name:________________________________________________________________________ _______/24 Score YOUR Name_________________________________ _______/10 Peer Score average _______/10 Teacher Evaluation ________/44 Total Score Other partners’ names: ___________________________________________________________ Scoring: 3=Terrific 2=Good 1=Meh 0=Bad hair day Domain Evidence Created two vocabulary/ process questions. 3 2 1 0 Created one model that requires labels to be identified in game. 3 2 1 0 Used at least one references materials. 3 2 1 0 Desk-sized game board made with color(each student must have a part in this), scoring points. 3 2 1 0 Game question/answer key provided (each student must have a part in this). 3 2 1 0 Game directions clear and concise, easy to follow (each student must have a part in this). 3 2 1 0 Tried game and could complete it successfully within your group. 3 2 1 0 Game completed successfully with class. 3 2 1 0 __________/10 Game Evaluation From Teacher ________________________________________Student Name Domain Work ethic On task at least 95% of blk. 3 2 1 0 Quality of product Readable, logical, correct. 3 2 1 0 Esprit de Corps Able to ‘get along’ and make positive suggestions if you are not satisfied with the project progress. 3 2 1 0 Extra mile Fills the facilitator position and tries to keep members happy and productive. 1 0 Evidence Viewing videos, getting materials, reading text, constructing game, collaborates with other groups’ members who have the same job. Not necessarily the Mona Lisa, but attractively presented, colorful. Error free. I can read all written/ or typed words from a comfortable distance. Not happy? Talk to your team about your solution without attacking anyone personally. Plays well with others. Wahoo! Every group needs a coordinator who will support others in getting their tasks accomplished. The facilitator may be the ‘go to’ person for content material as well. The facilitator takes responsibility to ask the teacher for help on behalf of the team. Game Evaluation From Peer Players! Game Name_____________________________________________________________________ Authors (last names)__________________________________________________________ ________/10 Score Your Name______________________________ Scoring: 3=Terrific 2=Good 1=Meh 0=Bad hair day Domain Evidence Directions clear, did not need clarification to play. 3 2 1 0 Board, questions, markers, key complete and correct. 3 2 1 0 Models are main/big idea, are clear and recognizable. 3 2 1 0 Comments (must do this) 1 0 : MITOSIS Tic-Tac-Toe 1. Why to cells need to make a new copy of themselves? 2. In what part of the cell cycle does mitosis occur? 3. What happens during prophase? 4. What happens during metaphase? 5. What is the process called in which the two new cells actually split apart? 6. In what phase do the chromosomes migrate to the poles? 7. The opposite ends of the cells are called_____. 8. In what phase are proteins actively being made? 9. In what phase do the chromosomes replicate? 10. Explain what the cell equator is and in which phase it plays a role. 11. BONUS!! What are the stretchy structures called that attach to the poles and the chromatids? TIC-TAC-TOE Boards MEIOSIS Checkers 1. Diploid refers to having two sets of chromosomes in a cell, which are made during _________. _______ refers to chromosome sets made during meiosis, which result in reproductive cells. 2. During _______phase, ________ results in genes breaking off and reattaching, coding for more variation in offspring than would otherwise happen. 3. Occasionally during meiosis, a chromatid fails to separate from its sister chromatid and therefore has _____ copies in its reproductive cell. This condition is called________. 4. __________ is the term for egg and sperm, reproductive cells. An egg that is fertilized is called a ___________. 5. A newly developing sexually produced organism contains one copy of each chromosome from its ______ parent and one copy of the same chromosome from its ______ parent. 6. A kinetochore functions to _______. 7. The centrosome/centrioles are located at the _______ and function to _______. 8. ______number of cells result at the end of meiosis I having the ______ number of chromosomes, whereas _____number of cells result at the end of meiosis II, each having the ____ number of chromosomes. 9. Single-celled organisms utilize _________ ________ as their reproductive strategy, which results in offspring that are genetically __________ called a clone. 10. What is the greatest advantage that sexual reproduction has over asexual reproduction? 11. BONUS!! What are four characteristics of all living things? CHECKERS BOARD SCORE CHECKERS CHECKERS CHECKERS CHECKERS CHECKERS CHECKERS CHECKERS CHECKERS CELL GROWTH AND REPRODUCTION Do Now—MITOSIS AND MEIOSIS Honors __________SCORE Name____________________________ Remember to rephrase the question in your answer. Use complete sentences. Use punctuation. 3a. 3b. 4 Mitosis/Meiosis/Cytokinesis Guided Reading—H ________Score Name_________________________________ 8.1 Chromosomes 1. Define the FUNCTION for the following: Histone Chromatid Centromere Chromatin 2. Look at Table 8.1. Does there appear to be any relationship between number of chromosomes and ‘intelligence’? YES OR NO What is your evidence? 3. Give examples for: Homologous chromosomesAutosomesSex chromosomesKaryotype4. What’s the difference between haploid and diploid cells? **What are your thoughts about the reading so far? Mitosis/Meiosis/Cytokinesis Guided Reading—H 8.2 Cell Division Page 2 5. Describe binary fission. Give an example of an organism that does this. 6. Look at Fig 8.5. In what phase does the cell spend most of its time? (Hint: Look at OUTSIDE the colored circle at the black labels.) 7. Two primary products formed in this phase, proteins and a copy of __________. Stages of Mitosis: *Mitosis is a very small part of the cell cycle. It only goes through mitosis when a new cell needs to be made. 8.What happens during mitosis? 9. What happens during cytokinesis? 10. What do you think may happen if mistakes are made at any of the checkpoints or control is lost? Cytokinesis: Cyto-Cell Kinesis-Movement 11. What are the differences between plant and animal cytokinesis? Plant Animal **What question(s) do you have about MITOSIS? 8.3 Meiosis, Gametes, and Sexual Reproduction 12.____________________________is the general term for cells made during meiosis, which are haploid. Mitosis/Meiosis/Cytokinesis Guided Reading—H Page 3 13._____________________is the example of the above term for the male, and ____________ is an example for the female cell. 14. What are the eight steps in Meiosis and important events that occurs in them? Steps What’s Happening? Look at Fig 8.12. 15. Explain why crossing-over is so important. ______________________________________________________________________________________________ 16. What’s the main difference in meiosis in males and females? ______________________________________________________________________________________________ 17. Ask me to ‘make the diagram’ on the board. Copy it. **How do you keep straight the differences between mitosis/meiosis? Mitosis/Meiosis/Cytokinesis Guided Reading—H Page 4 19. Complete the chart. Comparison Between Asexual and Sexual Reproduction Asexual Both Sexual 20. Look up and explain parthenogenesis. _________________________________________________________________________________________________ ________________________________________________________________________________________________. What’s an example organism that uses this strategy? ______________________________________ **What questions do you have about parthenogenesis?