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Writing Revisions Tuesday – 10/25 • On your warm-up sheet of paper from yesterday, complete the following: Describe the various stages of the life cycle of a human being from beginning to end. Cell Cycle vs. Life Cycle The cell cycle is similar to the life cycle of a human in that they both have various phases that are associated with distinct characteristics. Cell Cycle Video • As you watch the video clip below, try and list the phases of cell growth and division that are mentioned in the video. • Record your answer below your warm-up. https://www.youtube.com/watch?v=VRhz3DhjG5M Cell Cycle Notes Using your diagram, fill out the blanks to the best of your ability using the word bank. Fill in the blank • The purpose of mitosis is for growth and division of cells • As a cells get bigger, in interphase (G1) it, – Uses up more oxygen and glucose more quickly – Places more demand on its DNA – Has more trouble transporting enough material across its membrane • The cell then replicates its DNA (S phase) which mean it makes an identical copy or synthesis of DNA • The next phase G2 is preparation for mitosis, which means copying of organelles and growing even more to prepare for mitosis • Cell division consists of 2 parts – Mitosis – 4 phases that divides the nucleus – Cytokinesis – the division of cytoplasm and the cell membrane Mitosis Hands • Lets learn mitosis hands. • On the back of your warm-up, number 1-6 on the left-hand side of your paper. • Leave some room between each number. • Write the name of each phase and the defining characteristics of each phase. – Be sure to focus on the genetic material. Spinner! Line up your Circle Cut Out with the Full page notes side with the pictures. Carefully use your brad to poke a hole through both pages to create your spinner! Wednesday/Thursday: 10/26 or 27 • Use your spinner notes that you made yesterday to answer the following: 1. Which phase of the cycle is the longest? What 3 events make up this phase? 2. List the order of events of the cell cycle, starting with G1. 3. What is the purpose of mitosis? Let’s Practice! • For each picture, write the following things on your notebook paper. • Use your spinner to help you! 1. The phase the cell is in. 2. The defining characteristic of that phase. 3. Draw a picture 1. The phase the cell is in. 2. The defining characteristic of that phase. 3. Draw a picture 1. Metaphase 2. Lined up in the middle 1. The phase the cell is in. 2. The defining characteristic of that phase. 3. Draw a picture 1. Interphase 2. No defined chromosomes 1. The phase the cell is in. 2. The defining characteristic of that phase. 3. Draw a picture 1. Telophase 2. Daughter cells are pulling apart from each other, but not completely separated. 1. The phase the cell is in. 2. The defining characteristic of that phase. 3. Draw a picture 1. Prophase 2. Chromosomes are formed (looks like worms) 1. The phase the cell is in. 2. The defining characteristic of that phase. 3. Draw a picture 1. Anaphase 2. Chromosomes are pulling away. (Opposite sides of the cell) Take a minute to look over your notes about the phases of the cell cycle below. Memorize them. Be able to label this. You will be questioned on this… On a notebook sheet of paper, put the pictures in order (draw your own pictures) and write the name/description of each phase Check our Answers!!! Below are plant cells in various stages of the cell cycle. On a sheet of paper, number 1-18. Describe what phase the cell is in, and write a brief description of what is occurring in this phase. Start with the numbers that have lightening bolts, and then complete as many as you can. You have 5 minutes to finish as much as you can. prophase centrioles metaphase Sister chromatids anaphase centromere telophase Spindel fibers C B E A D Complete the questions with a star by them. Prophase 2 10 Spindle fibers Cytokinesis S phase centromere chromatids 23 2 daughter Cell plate Exit Ticket • Try and list the phases of the cell cycle in order (including the steps of mitosis). • Describe each phase in as much detail as possible. • When you finish, flip it over on your desk. Friday – 10/28 • Grab your binder as you come in. • Complete your warm-up on your warm-up sheet from last week. 1. Label the following phases of the cell cycle. 2. List the 3 phases of interphase in order, and describe what happens in each phase. WHAT IS CANCER? 1. HOW MANY TYPES OF CANCER DO YOU THINK THERE ARE? Sample text There are over 200 types of cancer COMMON CANCERS * *Includes malignant brain and central nervous system tumours. WHICH CAUSES OF CANCER CAN YOU CONTROL? WHICH CAUSES OF CANCER CAN YOU CONTROL? Sample text Sample text 2. Cancer is generally a disease of... A. Older age B. Childhood C. Middle age Sample text 3. How does cancer develop? A. You can catch it from someone B. When cells divide out of control C. From a blood transfusion Sample text Refresher: How many types of cancer are there? A. 20 B. 200 C. 2000 Name the 4 most common cancers in the UK • Breast • Lung • Prostate • Bowel QUIZ 4.TRUE TRUE OR FALSE? There are many things A healthy lifestyle isn’t a within our control guarantee againstthat cancer, can reduce the risk buthelp it can help to stack ofthe cancer... odds in your favour 5. TRUE OR FALSE? TRUE It is possible to inherit genes from your But this doesn’t necessarily mean you parents that make you more likely to will get cancer. It just means you’re at develop a certain type of cancer? higher risk QUIZ Sample text 6.TRUE TRUE OR FALSE? Cell a natural Butdivision if it getsisout of process, for the control,needed cancer can growth, developrepair and replacement of cells in the body... QUIZ TRUE Being active is a 7. TRUE great wayOR toFALSE? help Being physically reduce the risk of active can reduce bowel, breast and the risk of cancer... womb cancers. Aim for about 60 minutes a day Disruptions • Disruptions in mitosis can lead to diseases such as cancer. • Cells contain internal and external regulators. Internal regulators allow the cell cycle to proceed only when certain processes have occurred (ex. all chromosomes have been replicated) • Cancer is an uncontrolled synthesis (growth) of cells. If a mutation occurs in the genes that control the cell cycle, then mitosis could occur before the cell has gone through the all stages of interphase or even if the cell has been damaged. • Example: The p53 gene product normally senses DNA damage and either halts the cell cycle until it can be repaired or, if the damage is too massive; triggers apoptosis. Apoptosis is programmed cell death. Cancer Cells Clip (1:07) Cancer Cell Clip 2 (2:53) Cancer Reading • As you read through the passage, underline or highlight the key info using the dry erase marker. • Then, using the info in the passage, fill out the graphic organizer to the best of your ability. Cancer Notes • Write any additional notes on the back of your graphic organizer over the next 2 slides. Exit Ticket • Clear everything off your desk except for something to write with. • Fill out the cell cycle with as much information as you can remember. • When you finish your exit ticket, flip it over on your desk. Monday – 10/31 • Grab your binder as you come in. • Complete your warm-up on your warm-up sheet from last week. Using complete sentences, describe how cell division of cancerous cells is different than cell division of healthy cells. Roll The Dice Game 1. One person in the group will roll the dice. 2. That one person will answer the question on the next slide for the number you roll. 3. You will pass the dice to the person on your left, they will roll and answer the question they landed on. 4. Keep repeating until all questions have been answered. It is ok if someone else answers the same question that’s been answered before. 1. What is the purpose of cell division? 2. What phases make up just mitosis? 3. Describe how DNA can look during the cell cycle. 4. List all the phases of the cell cycle in order. 5. Describe how cancer forms. 6. Explain what all occurs during Interphase Bingo • Take all of your notes off your desk. • Fill out the phase of the cell cycle, or specific phase of mitosis, that corresponds with the description on the screen. Card Sort • Place the cards with the various phases of mitosis in the correct order. • Try and do this without your notes, but if you get stuck, you may use your notes. Jeopardy https://jeopardylabs.com/play/the-cell-cycle3 Mitosis Practice • Fill out the half-sheet by labeling the stages of mitosis. • Try and do this without your notes, but if you get stuck, you may use your notes. Exit Ticket • Clear everything off your desk except for something to write with. • Fill out the cell cycle with as much information as you can remember. • When you finish your exit ticket, flip it over on your desk. Friday – 10/30 TEST DAY! Take 5 minutes to study your notes and ask me any last minute questions.