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Transcript
C6MagCel MAGNETIC CELL LAB PRE-LAB BACKGROUND A cell is the smallest unit of life. There are two main classifications for cells and organisms: prokaryotic and eukaryotic. Prokaryotic organisms are comprised of prokaryotes, or single cells that lack a membrane bound nucleus and usually lack membrane bound organelles. Cells containing a membrane-bound nucleus and membrane-bound organelles are classified as eukaryotes. The quantity and types of organelles in cells depend on the function of the cell. Not all animal cells and plant cells look or function the same way. The cell models used in this lab are just one type of generalized animal and plant cell. SAFETY MATERIALS Plant or animal cell kit (1 for each pair of students) PROCEDURE 1. Remove all pieces of your plant or animal cell from the bag. 2. Place all the organelles on the cell in the proper position. 3. As you build your cell, on your own sheet of paper create a chart of three columns as below: Organelle drawing Name Function Animal Cell (y/n) Plant Cell (y/n) 4. Take 10 minutes to complete the chart you created without using any resource materials. 5. Use your textbook or other resources to complete any organelles for which you are unsure. 6. When you have completed your chart check with another group who had the cell you did not have (plant or animal). Include any missing organelles and complete the last two columns. 7. Complete the analysis questions on the student data sheet. August 2011 ASIM Biology: Subject Page 1 of 5 C6MagCel STUDENT ANSWER SHEET Student created on a separate sheet ANALYSIS QUESTIONS 1. What organelles were found in plant cells that were not in animal cells? 2. Why were the organelles listed in #1 above not needed in animal cells? 3. What organelles were found in animal cells that were not found in plant cells? 4. Why were the organelles listed in #3 not needed in plant cells? 5. List the organelles involved in protein synthesis. 6. List the organelles in the plant cell used in energy production and use. August 2011 ASIM Biology: Subject Page 2 of 5 C6MagCel EXTEND: Choose either the model or the analogy poster Using household items make a three-dimensional model of a plant or animal cell that meets the criteria listed below. (Sample items: cereal, balloons, mints, fruit slices, dried fruit, matches, gum balls, peanuts, rope licorice, jelly beans, sesame seeds, other candies, toothpicks. Craft packages also may work: clay, beads, pipecleaners..etc) Choose what type of cell you will build, a typical plant or animal cell. Include this label somewhere on your model. Create a KEY or label in some way each part on your model and its function. Cell Project Rubric Category Scoring Criteria Craftsmanship Model is creative, shows effort Excellent (3 pts) Satisfactory (2 pts) The model is 3 dimensional Model stays together, not too messy or difficult to move around Cell Parts Key, legend, or labeling is easy to use to identify parts on the model Functions of cell parts included (accurate) Appropriate material is used so that it looks like the cell part it is modeling Parts of organized within the cell in their appropriate places Written Word Basic grammar, spelling on key and any other writing used in model August 2011 ASIM Biology: Subject Page 3 of 5 Minimal (1 pt) C6MagCel Cell Analogy Poster Project Purpose: An analogy is defined by Webster as “a comparison between two things which are similar in some respects, but otherwise are different; an explaining of something by comparing it point by point with something else.” Materials: poster board, glue, scissors, markers, pens, construction paper, list of functions of cell organelles Procedure: 1. Work in groups of 3, unless otherwise instructed. 2. Choose a plant or animal cell to base your collage on. The organelles listed below must be included. 3. Place a colored picture of your cell in the center of your poster board. 4. You will need to establish a theme for your poster – the cell is a city, the cell is a school, the cell is a factory, etc. 5. Come up with an analogy for each organelle that shows the similarity between the organelle’s function and the function of an object related to your theme. Be sure to explain the reasoning behind your analogies. (For example: The NUCLEUS IS LIKE THE BRAIN because it controls and coordinates the activities of the whole cell IN THE SAME WAY the brain controls and coordinates activities of the body.) Very important note: Your analogies must be in the same format as the one above. Make sure that you clearly explain your analogy. 6. Around the edges of the poster board; neatly write by hand (or type) the names of the organelles and your analogy. Make a pointer from the analogy to the correct organelle in your cell. 7. Projects will be graded based on all organelles being present, correctness of analogies, correct labeling, the following of all procedures, creativity, and quality. Required Organelles 1 2 3 4 5 6 7 8 9 10 11 12 August 2011 Plant Cell Plasma Membrane Nucleus Nuclear Envelope Cytoplasm Cytoskeleton Endoplasmic Reticulum Ribosome Golgi Apparatus Vacuole Mitochondria Cell Wall Chloroplast Animal Cell Plasma Membrane Nucleus Nuclear Envelope Cytoplasm Cytoskeleton Endoplasmic Reticulum Ribosome Golgi Apparatus Lysosome Mitochondria Cilia or Flagella Centriole ASIM Biology: Subject Page 4 of 5 C6MagCel Grading Rubric for Cell Analogy Poster Description All organelles present from list All analogies correct (the use of proper functions NOT structures) All analogies written correctly (using like and in the same way) Established theme Neatness August 2011 Points Possible Points Earned 24 (2 pt per organelle) 24 (2 pt per analogy) 12 (1 pt per analogy) 6 6 Total= 72 pts Total= ASIM Biology: Subject Page 5 of 5