**Definition Cell cycle 2. Homologous Chromosome 3. Sister Chromatid 4. Synapsis **Short Questions 1.Describe the chief events of mitosis and show how these differ from meiosis. (V.V.I.) 2. What ‘checkpoints’ occur in cell cycle? What is the role of each? **Long Questions 1.Describe the phases of the cell cycle and the events that characterize each phase. Answer of short Definition is given below 1. Cell Cycle: The cell cycle is an orderly sequence of events that occurs from the time
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Plan | I. Neurons/nerve cells A neuron is a cell specialized to conduct electrochemical impulses called nerve impulses or action potentials. Neuron is the main cellular component of the nervous system‚ a specialized type of cell that integrates electrochemical activity of the other neurons that are connected to it and that propagates that integrated activity to other neurons. They are the basic information processing structures in the CNS. There
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roles of mitotic cell division‚ meiosis‚ and fertilization in the human life cycle. Mitosis allows for growth and repair from the fertilized egg to the adult. In reproductively mature individuals‚ meiosis creates gametes with half the genetic material. The male gamete then fertilizes the female gamete during sexual reproduction‚ forming a zygote with a full set of genetic material. 2. Why are both cell division and apoptosis necessary for the development of an organism? Cell division is needed
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Period:________ Cell Project Each person will complete one of the three cell projects at home: a. Cell Analogy Poster b. Travel Brochure to a Cell c. 3D Cell Analogy Model Due Date: Wednesday‚ November 26‚ 2014 One cell project (Poster‚ Brochure‚ OR Model) Use this packet as a resource guide to help lead you through your project. Remember‚ you are not doing everything in this packet‚ only ONE cell project choice at home. Parents/Guardians Please review the choices for the cell project with your son/daughter
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Chapter-8 Cell: The Unit Of Life What is a cell? Cell is the basic or fundamental structural and functional unit of an organism. What is cell biology? The branch of biology that deals with the study of cell structure and function is called cell biology. DISCOVERIES; Who discovered cell? Robert Hooke observed a live cell in 1665. He observed the cell(actually the cell walls) in the slice of cork under his compound microscope ‚coined the term cell‚ recorded his observations in micrographic
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Discovering Cells Directions: answer the following questions using complete sentences. Use pages 6C-13C of your textbook. 1. What are cells? 2. When was the first microscope invented? 3. What is a microscope? 4. What is the difference between a simple and compound microscope? 5. Who was one of the first people to observe cells? 6. What did Anton van Leeuwenhoek discover? 7. A Scanning Tunneling Microscope (STM)
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In Bonnie Tsui’s‚ Choose Your Own Identity‚ she discusses the flexibility that lays within racial identity. In Tsui’s essays she states that even though our race has such a huge roll in the way we make our political and societal decisions‚ racial identity has become fluid. In her mind‚ we are making a come back and prioritizing the importance of who we identify as‚ rather than focusing on what we are. In Tsui’s own words‚ “In a strange way‚ the renewed fluidity of racial identity is a homecoming
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increase in size as their cells grow and divide. Almost all cells complete a full cell cycle that includes interphase and cell division. In interphase‚ cells serve their specialized functions‚ grow‚ and copy their genetic material. Mitosis is the first stage of cell division‚ in which the copied chromosomes are separated into two new nuclei. Then in cytokinesis the cell divides into two daughter cells. If no mutations or errors occur‚ the genetic material in each daughter cell is identical to what was
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How Cancer Cells Differ From Normal‚ Healthy Cells Cancer cells are very different from healthy cells. Healthy cells grow and divide like they are suppose to‚ whereas cancer cells do not grow and divide in a healthy way. So instead of acting in healthy ways as the body needs to function the cells begin to grow in unhealthy ways and affect all other cells. (http://biology.about.com/od/cellbiology/ss/normal-cells-cancer-cells.htm) There are many things that can happen to us that can cause our healthy
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Case Study 3: Cell stucture and function Background Information: what are the major feature of eukaryotic cells? In this case study‚ you will apply your knowledge regarding the function of cell structures. Metabolic disorders and unique characteristics of some cells will be used to illustrate the importance of individual structures. Pick 5 out the following 7 small case studies. Each one focuses on one cell component. For each cell component‚ answer the following questions and also any questions
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