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3D Biology Cell Analogy Project Extra Credit (up to 12 points) The last day the extra credit project can be turned in is ______________________________________ The past few weeks we have been reviewing and learning about cell structure and function. This extra credit project will demonstrate your understanding of the following concepts as they relate to a eukaryotic cell: 1. Cell structure including organelles (types, location, and functions) and cell membrane (structure). This is all in section 7.2 of your textbook. 2. Cellular transport (diffusion, osmosis, active transport, endocytosis and exocytosis). Section 7.3 You can choose the way that you demonstrate your knowledge. However, the project must have at least 50% of its features in 3D. If you have an idea that you are not sure about, check with me first. Example: The Cell as a Factory (Do Not use this example!) All eukaryotic cells are composed of a plasma membrane, a nucleus, and cytoplasm. These structures can be compared with a factory's departments. 1. The plasma membrane regulates what enters or leaves the cell. It is analogous to the shipping and receiving department of a factory. The plasma membrane also functions as the communications department because it is where the cell contacts the external environment. 2. The nucleus (or the executive department) runs the cell factory and controls all cell activity. It determines what proteins are to be made and stores all the plans for any proteins that the cell currently makes or has made in the past. 3. The cytoplasm includes everything between the cell membrane and the nucleus. It contains various kinds of cell structures and is the site of most cell activity. The cytoplasm is similar to the factory floor where most of the products are assembled, finished, and shipped. The cell "factory" on this tour contains many interesting departments, all of which are directly or indirectly powered by solar energy. Without energy from the Sun, no life could exist. 1 3D Biology Cell Analogy Project Extra Credit (up to 12 points) When putting together your 3D model, be sure to include two terms for each analogous part. In the factory analogy mentioned earlier, a Lego construction of a power plant would be analogous to the mitochondrion in a cell (they both produce energy). You would show that association by writing the terms “power plant” and “mitochondrion” on a label and placing it on the Lego power plant (see Figure 1). Another example is that a factory’s central office is analogous to the nucleus of a cell since they are both control centers (see Figure 2). A third example is that of a forklift. Like a vesicle transports substances around the cell, a forklift ferries supplies and products around the factory (see Figure 3). Figure 2 Figure 1 Central Office Figure 3 (Nucleus) As mentioned, the factory example is off limits. However, there are many other 3D models that will make great analogs to the cell. Below are a few examples that have been done in the past. Aircraft carrier Shopping center Construction site Hospital Sports complex Town or city Airplane Fire station Supermarket Army base Cafeteria Home Zoo Car Tank Phone For full credit, 12 or more of the following structures or cell actions in your 3D project. Cell membrane Mitochondrion Ribosome Endoplasmic reticulum Golgi Apparatus Lysosomes Cell wall Chloroplast Vacuole Vesicle Nucleus Cytoskeleton Diffusion Osmosis Facilitative diffusion Active transport Endocytosis Exocytosis Neatness and creativity are also considered as shown in the rubric below. 9 to 12 points neatness effort and creativity 12 or more structures or actions; extremely neat and creative; obvious extensive effort in production ; >50% in 3D 6 to 8 points 3 to 5 points 0 to 2 points 9 to 12 structures or actions; neat and creative, some effort obvious in production; > 50% in 3D 5 to 8 structures or actions; lacking in creativity, neatness, and/or extensive effort; < 50% in 3D Fewer than 5 structures or actions; very simplistic, very little effort, messy work; no 3D apparent 2