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Transcript
Cell Structure We will be looking at two types of cells in this unit. The first cell is the cell. The second type of cell is the have little structures inside of them called cell. Cells . Organelles are small structures inside the cell that each perform a specific . Animal and plant cells have many organelles in common, but some organelles are unique to only animal cells and some organelles are unique to only plant cells. Analogy – The cell can be compared to a . Each organelle has a different job to do to keep the cell alive, just like each part of a city has a different job to keep the city functioning. Cell Organelles (Both Animal and Plant Cells) Organelle Cell Membrane - Cytoplasm - Cytoskeleton - Nucleus - - Purpose A layer of fat and protein that keeps the cell together A that has dissolved nutrients Here nutrients are absorbed, transported, and within the cytoplasm. All organelles are supported in this fluid Pieces of protein that support the shape of the cell and helps to transport and other proteins around the cell A round structure that of the cell Directs all of the cell’s City Analogy – controls what goes in and out of the city City Hall – All of the decisions about what is going on in the cell comes from here Nucleolus - activities A small structure inside the nucleus that is responsible for Companies responsible for building the factories . Chromatin/DNA/Chromosomes - - Endoplasmic Reticulum (ER) - - Ribosomes - - Golgi Body (AKA Apparatus/Complex) - Mitochondrion - Strands of genetic material found in the . These strands contain the instructions used to make proteins The ER is a network of membrane where fat and proteins are and are then transported through the channels Proteins are made by ribosomes in the rough ER and fats are made in the smooth ER Small structures that manufacture proteins essential for cell and reproduction Either free in cytoplasm or bound to rough ER Made up of sac-like pancakes stacked on top of each other Golgi bodies package and secrete . These organelles are oval in shape and are responsible for turning Plans for making a building or highway in the cell – Road System – Allows for throughout the city – Builds structures for the city Post Office – package materials Power Company – Produces energy for the city Vacuole - the food that we eat (glucose) into . Stores water, food and wastes stores materials needed by the city Animal Cells Animal cells have all of the structures listed above. They also have two more organelles that are found only in animal cells. Organelle Purpose Lysosome - Centrioles - unwanted material and waste in the cell Used in the process of the cell City Analogy Garbage Truck – Pick up the garbage and get rid of it – Plant Cells Plant cells have three unique structures as well. Organelle Cell Wall - Central Vacuole - Chloroplast - Purpose Surrounds the cell membrane Helps the cell keep its City Analogy Cement Wall – Surrounds the city . Stores water to help the cell keep its shape An oval structure that turns into energy (sugar = food) . Solar Power Plant – uses the sun’s energy to produce power for the city.