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Transcript
1. Please have these Items on your desk. AR Book Agenda 2- Science Starter: Under the document camera Monday November 30th , 2015 Day 2 Science Starters Sheet • https://www.youtube.com/watch?v=zafJKbMPA8 • Cell rap • https://www.youtube.com/watch?v=B_zD3Nx SsD8 • Inner life of a cell Today’s to-do list • Review cell and genetics learning goals • Mind map of cells and genetics • Take notes on cells. Table of Contents Update • Page 70 Learning goals for cells • and heredity (genetics) 11/30 • Page 71 11/30 Notes on cells Our Learning goals for cell reproduction and heredity •I can explain the purpose of cell division • I can explain the purpose of cell growth and repair •I can explain cell reproduction •I can explain the basic principles of heredity using the examples of: eye color, widow’s peak, and blood type •I can distinguish between the dominant and recessive traits in humans. Cell Anatomy Cell Parts & their Function What is a Cell? A cell is the smallest unit that is capable of performing life functions. It is the basic unit of living things. Cell Theory • All living things are made up of cells. • Cells are the smallest working units of all living things. • All cells come from preexisting cells through cell division. Examples of Cells Amoeba Proteus Plant Stem Bacteria Red Blood Cell Nerve Cell Cell Organelles • Cell Parts are referred to as organelles. Cell Wall Most commonly found in plant cells & bacteria Supports & protects cells Cell Wall Cell Membrane • protective layer around all cells • allows food and oxygen into the cell and waste products out of the cell. Cell Wall Cell Membrane Cytoplasm • Gel-like material • Surrounded by cell membrane Cell Wall Cell Membrane Cytoplasm Nucleus • contains instructions for everything cell does; includes DNA Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome • Each cell contains thousands • Make proteins which repairs cells – (Think of it like a battery plant!) • Found on ER & floating throughout the cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome Endoplasmic Reticulum (ER for Short) • Moves materials around in cell – (Like a highway) • Smooth type: lacks ribosomes • Rough type : ribosomes embedded in surface Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion • releases energy from food – (Energy Plant) • Controls level of water and other materials in cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts • • • • Found only in plant cells. Contains green chlorophyll Where photosynthesis takes place Helps plant cells make food. Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts Vacuole • membrane-bound temporary storage spaces • Contains water solution • Help plants maintain shape Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts Vacuoles Golgi Body • Protein 'packaging plant' • Move materials within the cell • Move materials out of the cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts Vacuoles Golgi Body Bibliography • http://www.scienceclass.net/PowerPoints/Cell_structure_functio n.htm • Glencoe Life Structure Book A