Animal Cell Organization Learning the Parts of a Cell Cell Basics • • • • • All living things are made of cells There are trillions of cells in your body New cells are constantly replacing old cells Cells contain parts called organelles Plant and animal cells are different but we are going to focus on the animal cell The Building Blocks of Life Cells are small units that hold all of the biological equipment needed to keep an organism alive • Organization • Carry Out Different Functions • Hold Hereditary Information The Different Parts • • • • • • • • • • • Cell Membrane Nucleus DNA/Chromosomes Proteins Ribosomes Vesicles Mitochondria Endoplasmic Reticulum Golgi Complex Vacuoles Lysosomes There are so many parts, how can we learn them all? Compare the parts of a cell to something easier to understand and more memorable!! How about a Cookie Factory? The Different Parts • • • • • • • • • • • • Factory Building Walls and Doors Main Office Cookies Baking Ingredients Cookie Recipe Packages for Finished Cookies Machinery and Ovens Generator for Energy Conveyor Belts Machinery to Modify and Package Jars to store ingredients Trash system for waste Factory Walls Cookie Factory • Surrounding border Equivalent? • Separates the inside from the outside • Has doors and windows to move things in and out • Made of strong building materials Cell Membrane • Surrounding border • Separates the inside from the outside • Is semi-permeable and has gates to move things in and out • Made up of a phospholipid bilayer phospholipid The heads like water (hydrophilic) • Made of proteins and lipids • The phospholipids make the formation • The proteins are found around the holes The tails do not like water (hydrophobic) These two layers are what form the bilayer phospholipid bilayer Main Office Cookie Factory • The brain of the factory Equivalent? • Houses the top secret recipe • Controls the entire cookie making process of the factory • Issues commands to the factory Nucleus • The brain of the cell • Houses the hereditary material - DNA • Controls eating, movement and reproduction of the cell • Issues commands to the cell Cookies Cookie Factory Equivalent? • Major compound of the factory • Essential for continuance of factory • Made from a list of ingredients Proteins • Major compound of the cell • Essential for continuance of cell • Made from a list of amino acids Ingredients Cookie Factory Equivalent? • Building blocks of cookies • Different combinations make different cookies Amino Acids • Building blocks of proteins • Different combinations make different proteins Jars Cookie Factory Equivalent? • Storage containers of the factory • Store ingredients and supplies Vacuoles • Storage bubbles of the cell • Store food and nutrients REVIEW What have we looked at so far?? Match the following: Jars Proteins Main Office Vacuoles Cookies Ingredients Cell Membrane Amino Acids Baking Machinery Cookie Factory • Cookie makers Equivalent? • Put ingredients together • Located in many places throughout the factory • Can be part of machinery that mobilizes the product with conveyor belts or separate Ribosomes • Protein builders • Build chains of amino acids • Located in many places throughout the cell • Can be on the Endoplasmic Reticulum or free floating Conveyor Belts Cookie Factory • Transports the Equivalent? product • Can send the cookies to a storage room • Can send the cookies to a packing room Endoplasmic Reticulum • Packaging system that transports proteins • Smooth ER – storage organelle • Rough ER – synthesis and packaging of proteins Packaging Machinery Cookie Factory Equivalent? • Package several bags of cookies into large boxes for shipment • Sends the boxes to storage or out for shipment to stores Golgi Complex • Gathers simple molecules and combines them to form larger, complex molecules • Stores the large molecules in vesicles for later use or to send them out Boxes Cookie Factory Equivalent? • Taken off of the machinery • Sent out for transportation of the product Vesicles • Pinched off of the Golgi membrane • Sent out for transportation of materials Waste Breakdown and Recycle Cookie Factory Equivalent? • Gets rid of waste • Recycles reusable goods • Cleans the factory Lysosomes • Gets rid of cell waste through digestion • Recycles nutrients and proteins • Cleans up the cell Energy Generator Cookie Factory Equivalent? • System that creates energy for the factory • Number of generators in a factory depends on how much energy is needed • “Powerhouse” that runs the factory Mitochondria • System the creates energy for the cell • Number of mitochondria in a cell depends on how much energy is needed • “Powerhouse” that runs the cell REVIEW II More cell parts to remember! Replace the function with the name: Protects cell from the outside Combines small molecules to form larger molecules Controls the cell Protein builders Responsible for cell energy Transports materials Ribosomes Endoplasmic Reticulum Mitochondria Golgi Complex Cell Membrane Nucleus Mighty Mitochondria • Multiple mitochondria in each cell • Takes nutrients and breaks them down into energy • Can grow, move and combine with other mitochondria • Responsible for 90% of energy needed by the body Without Mitochondria • • • • Cells would not have the energy to survive Without cells, tissues die Dead tissues result in organ failure Without organs, our bodies would fail Mitochondria Cardiac muscle cell Cardiac muscle tissue Heart Mitochondrial Diseases Result from failures of the mitochondria causing less energy to be generated in the cell. Symptoms Mitochondria are very important organelles!! Mitochondria Quiz The Parts Make the Whole • All parts of the cell are important • Cell could not survive without the system • Just like the Cookie Factory