PPT-Mitosis and Cytokinesis Chapter 5.2

KEY CONCEPT Cells divide during mitosis and cytokinesis Show biology presentation film clip mitosis 2 Chromosomes condense at the start of mitosis DNA wraps around proteins histones that condense it. The Only Time When Division and Multiplication Will Mean The Same Thing!. The Life of a Cell. All cells in your body alternate between two different activities.. Interphase. – the cell is doing the job it was meant to do and/or preparing for cell division.. Cell Division. Remember…. *DNA more stable than RNA. * All organisms must be able to reproduce to keep life going. One cell becoming . two. All Reproducing Cells. 1. Replicate DNA in parent cell during the S phase.. Efficiency . Smaller the cell = quicker it can work. Transport of Substances. Cellular communication. Ratio of surface area to volume. Other reasons for cellular division. Growth. Replace damaged cells. Section 5.2. 1. Objectives. SWBAT describe the structure of a chromosome.. SWBAT follow chromosomes through the processes of mitosis and cytokinesis.. 2. Vocabulary. Chromosome. Histone. Chromatin. Chromatid. The features of mitosis that result in the production of genetically identical daughter cells. . The Cell Cycle. Cytokinesis. Mitosis. S. (DNA synthesis). G. 1. G. 2. Figure 9.1 – Chromosomes during cell division. The . cell cycle. is a repeated pattern of growth and division that occurs in eukaryotic cells. . This cycle consists of three phases: G1, S, G2. The first phase represents cell growth while the last two phases represent cell division.. . During the cell cycle, a cell grows, prepares for division, and divides to form two identical daughter cells, each. of which then begins the cycle again.. The series of events that cells go through as they grow and divide.. Get a sheet of paper and . number . 1-29. Answer are on the last slide. 1. were . credited for finding the structure of DNA. Chargaff. Franklin. Watson . & . Crick. 2. What phase of Mitosis is this?. The _____________ _____________ is a series of steps that cells go through to ____________ and ___________. It can be split into three distinctive processes: ________________, mitosis and ___________________. The first process can be broken down into three distinctive sub-phases. During ____________ and ____________ the cell is carrying on normal cell functions like growing and producing proteins. However, during _____________ the cell’s _____________ is replicated. The cell cycle has _______________ along the way to make sure cells are not reproducing incorrect versions of themselves. In rare occurrences damaged or abnormal cells can get copied which can lead to ______________ or ________________. . 7/22/2009 Cells divide to increase their numbers through a process of mitosis, which results in two daughter cells with identical sets of chromosomes. As you grow from an infant to an adult, you pass 1. . Interphase. 2. Cell Division. 2 main parts to the cell cycle. (AKA--Mitotic Phase). C. E. L. L. C. Y. C. L. E. Parts of a Homologous Pair of Chromosomes. Centromere. Chromosome. Chromatid. Homologous . Advanced Higher Biology. Miss Aitken. The Cell Cycle. Mitosis is the process of cell division.. Some cells are able to reproduce and make copies of themselves by following this sequence of events. The cell cycle consists of 2 phases: interphase (not dividing) and mitosis (dividing). Chromatin. - unwound DNA (loose). . Copied. Sister chromatids. - two identical copies of DNA (loose). . Coiled and Connected. Chromosomes. - two coiled, identical copies of DNA connected to each other (tight). mitosis. results in an increase in number of . identical. cells for . growth and repair. .. Identify and name the stages of mitosis in diagrams and photomicrographs.. Describe the . cell cycle. and relate it to an understanding of .