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Transcript
CELL PROCESSES Warmup What are some processes cell have to do? What makes something alive Cellular organization Similar life chemicals Use energy Grow and develop Respond to surroundings Reproduce. 4 needs Energy Stable internal conditions/homeostasis Living Space Water Cell Theory All cells come from cells Cells are basic unit of structure and function All living things are composed of cells. Cell Processes The functions of cells The chemical processes that run cells Cell Cycle Mitosis Cytokinesis Diffusion Osmosis Photosynthesis Respiration Cell Theory All cells come from other cells. New Skin cells come from skin cells All special cells originally come from stem cells that came from egg cells that came from our parent cells. Babies are made from cells from parents! Cell cycle The process of cells making new cells. split a cell in two. Important process Allows growth Development Reproduction Discussion What needs to happen for a cell to split in two. Does it become two half cells? What does each cell need? Cell Cycle The process of a cell copying itself and then splitting is called the cell cycle. Three parts Interphase: Growing getting ready for mitosis Mitosis : copying the nucleus Cytokinesis : Splitting in half Mitosis PMAT Mom mitosis peed on the mat again!! P: Prophase M: Metaphase A: Anaphase T:Telophase Cell Cycle 1. Interphase 2a. Mitosis: Prophase 3. Cytokinesis 2b. Mitosis: Metaphase 2c. Mitosis: Anaphase 2d. Mitosis: Telophase Cell Cycle 1. Interphase 2a. Mitosis: Prophase 3. Cytokinesis 2b. Mitosis: Metaphase 2c. Mitosis: Anaphase 2d. Mitosis: Telophase Cell Cycle Cell Cycle Cell grows, makes a copy of its DNA, and prepares to divide. The cell membrane pinches in around the middle of the cell, and the cell divides. Chromatin condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down. New nuclear membranes form. Chromosomes line up in the middle of cell. The chromatids separate and move to opposite ends of the cell. Cell Cycle Cell grows, makes a copy of its DNA, and prepares to divide. The cell membrane pinches in around the middle of the cell, and the cell divides. Chromatin condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down. New nuclear membranes form. Chromosomes line up in the middle of cell. The chromatids separate and move to opposite ends of the cell. Cell Cycle Cell grows, makes a copy of its DNA, and prepares to divide. The cell membrane pinches in around the middle of the cell, and the cell divides. Chromatin condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down. New nuclear membranes form. Chromosomes line up in the middle of cell. The chromatids separate and move to opposite ends of the cell. Cell Cycle Cell grows, makes a copy of its DNA, and prepares to divide. The cell membrane pinches in around the middle of the cell, and the cell divides. Chromatin condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down. New nuclear membranes form. Chromosomes line up in the middle of cell. The chromatids separate and move to opposite ends of the cell. Cell Cycle Cell grows, makes a copy of its DNA, and prepares to divide. The cell membrane pinches in around the middle of the cell, and the cell divides. Chromatin condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down. New nuclear membranes form. Chromosomes line up in the middle of cell. The chromatids separate and move to opposite ends of the cell. Cell Cycle Cell grows, makes a copy of its DNA, and prepares to divide. The cell membrane pinches in around the middle of the cell, and the cell divides. Chromatin condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down. New nuclear membranes form. Chromosomes line up in the middle of cell. The chromatids separate and move to opposite ends of the cell. Interphase----In between phase Cell grows, makes a copy of its DNA, and prepares to divide. Prophase 1st step Chromatin condenses to form chromosomes, spindle fibers form, and the nuclear membrane breaks down. Metaphase Second step Chromosomes line up in the middle of cell. Anaphase Third step The chromatids separate and move to opposite ends of the cell. Telephase 4th step New nuclear membranes form. Cytokinesis Time to split!! The cell membrane pinches in around the middle of the cell, and the cell divides. Review What happens during prophase What happens during metaphase What happens during anaphase What happens during telophase Get out cell cycle review sheet. Posters Create a poster showing all the steps of the cell cycle.
