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Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by __________________________ proteins. 2. Proteins called cyclins bind to enzymes called __________________________________ 3. In the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 4. __________________________________ is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called _________________________ 6. When an embryo divides, some cells go through a process called ________________________, or programmed death. 7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions. Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by __________________________ proteins. 2. Proteins called cyclins bind to enzymes called __________________________________ 3. In the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 4. __________________________________ is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called _________________________ 6. When an embryo divides, some cells go through a process called ________________________, or programmed death. 7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions. Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by Cyclin proteins. 2. Proteins called cyclins bind to enzymes called __________________________________ 3. In the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 4. __________________________________ is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called _________________________ 6. When an embryo divides, some cells go through a process called ________________________, or programmed death. 7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions. Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by Cyclin proteins. 2. Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 3. __________________________________ is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called _________________________ 6. When an embryo divides, some cells go through a process called ________________________, or programmed death. 7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions. Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by Cyclin proteins. 2. Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 3. Cancer is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called _________________________ 6. When an embryo divides, some cells go through a process called ________________________, or programmed death. 7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions. Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by Cyclin proteins. 2. Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 3. Cancer is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called Carcinogens 6. When an embryo divides, some cells go through a process called ________________________, or programmed death. 7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions. Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by Cyclin proteins. 2. Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 3. Cancer is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called Carcinogens 6. When an embryo divides, some cells go through a process called Apoptosis, or programmed death. 7. ______________________________ are unspecialized cells that can develop into specialized cells when under the right conditions. Biology I Section 9.3 SQ3R Quiz 1. The normal cell cycle is regulated by Cyclin proteins. 2. Proteins called cyclins bind to enzymes called Cyclin-dependent kinases (CDKs) in the stages of interphase and mitosis to start the various activities that take place in the cell cycle. 3. Cancer is the uncontrolled growth and division of cells. 5. Substances and agents that are known to cause cancer are called Carcinogens 6. When an embryo divides, some cells go through a process called Apoptosis, or programmed death. 7. Stem Cells are unspecialized cells that can develop into specialized cells when under the right conditions. Objectives February 9 • Summarize the role of cyclin proteins in controlling the cell cycle • Explain how cancer relates to the cell cycle. • Describe the role of apoptosis • Summarize the two types of stem cells and their potential uses How long is the average human cell cycle? 20 hours How many cells at the end of 1 day? 2 cells. How many cells at the end of 1 week? 256 cells. Normal Stomach Cells Interphase Prophase Metaphase Anaphase 120 mins. 60 mins. 10 mins. 3 mins. Telophase Total 12 mins. 205 mins. Cancerous Stomach Cells Normal Stomach Cells Cancerous Stomach Cells Interphase Prophase Metaphase Anaphase 120 mins. 60 mins. 10 mins. 3 mins. Interphase Prophase Metaphase Anaphase 16 mins. 15 mins. 2 mins. 1 mins. Telophase Total 12 mins. 205 mins. Telophase Total 3 mins. 37 mins. Homework • Section 9.2 chapter assessment page 261 and 262 Math Fun and the cell cycle A scientist observes 240 cells. 180 are in interphase, 25 are in prophase, 24 are in metaphase, 6 are in anaphase and 5 are in telophase. A complete cell cycle for this cell is 24 hours. What is the average duration of mitosis? A scientist observes 100 cells. 50 are in interphase, 18 are in prophase, 19 are in metaphase, 7 are in anaphase and 6 are in telophase. A complete cell cycle for this cell is 50 hours. What is the average duration of mitosis?
