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Making Models: Performance Assessment Name __________________ Cells: The Basic Unit of Life Date___________ Period ___ Objective: You will use everyday materials to build a cell model. Know the Score! As you work through the activity use the rubric below as a guide to earning your grade. TURN THIS PAPER IN WITH YOUR PROJECT Procedure 1. Use materials to build a plant or animal cell model. Your model should be three dimensional , not flat. Follow the materials guidelines below. 2. Your model must show cellular organelles in their approximate sizes and numbers. Use the pictures of the cell provided to know the sizes and numbers of the organelles. Use Page 573 in your book and pages 92 through 99 to help. Extra Structures Cell Website (http://micro.magnet.fsu.edu/cells/animalcell.html) 3. Build your model so that the size is no larger than 1 meter by 1 meter. 4. Complete the key on the back of the paper or create your own key that you attach to your project. Material Guidelines To hold your cell use boxes; plastic bags; clear plastic containers (NO GLASS). Dry foods such as seeds, beans, nuts, pasta (NO SUGARS/FOODS THAT SPOIL). Small items such as beads, pipe cleaners, straw, buttons, batteries, thread, ribbons, shoestrings, yarn, elastic. Materials such as sponges, clay, fabric, cardboard, newspaper. (NO LIQUIDS OR GELS that can make a leaky mess). Use your creativity and imagination. HAVE FUN! CELL MODEL RUBRIC Below Basic (1) Does not complete key for cellular structures showing a lack of effort or understanding Model does not show all organelles or there are 5 or more errors Basic (2) Completes key for cellular structures with 3 or more errors Proficient (3) Accurately completes key for cellular structures with 1 or 2 errors Advanced (4) Accurately completes key for cellular structures with 0 errors Model has all organelles from picture represented in the correct size and numbers with 3-4 or more errors Model has all organelles from picture represented in the correct size and numbers with 1-2 errors Model has all organelles from picture in the correct size and numbers; added extra structures for PLANT cell or ANIMAL cell Model shows a lack of effort and demonstrates work quickly done with poor appearance Model shows a average attention to detail and shows an average effort not as neatly done Model shows attention to detail and shows a good effort with work neatly done Model shows attention to detail and demonstrates excellent effort, and creativity Cellular Structure KEY (You may create your own key to attach to your cell model) Cellular Structure Cell Membrane (1) Nucleus (1) and DNA (several strands) Endoplasmic Reticulum (1) Ribosomes (On ER and throughout cell20 or more) Golgi Complex (1) Mitochondria (5) Lysosomes (10) PLANT Cell Wall (1) ANIMAL Centrioles (2) PLANT Chloroplasts (5) ANIMAL Microfilaments (5) PLANT Large Vacuole (1) ANIMAL Microtubules (5) Material in Model Definition of Cellular Function