Tommy Smith

Dr. Snyder

9th Grade

2011-2012

1. Scientific Method2. Microscope Lab3. Microscope Handout4. Animal Cell Coloring5. Plant Cell Coloring6. Organelle Flashcards7. Animal and Plant Cell Modeling8. Mitosis Simulation Lab9. Mitosis Drawing

Animal and Plant Cell Modeling

I. Purpose: 1. Recognizing the structural differences between plant and animal cells; 2. Understand the function of each organelle; 3. Create a 3D cell model; 4. Gain a better perspective on the size of each cell type and its components

II Materials: Plant Cell: Cupcake, Green Jello, Rectangular Pan, Blue and Green Jolly Ranchers, Twizzlers, Fruit by the Foot, Jelly Beans, Flat Jolly Ranchers, Jaw Breakers, Tupperware, Sweet Tarts, BeakerAnimal Cell: Cupcake, Blue Jello, Circular Pan, Red and Purple Jolly Ranchers, Twizzlers, Fruit by the Foot, Jelly Beans, Flat Jolly Ranchers, Sweet Tarts, Jaw Breakers, Beaker

III. ProcedurePlant CellPrepare the Jello as instructed on the packaging. Before the Jello solidifies, place all the candiesin. Turn the Tupperware container upside down and put it in also. Place the cupcake in the beaker and put it in as well, making sure the cupcake stays dry. Refrigerate for the amount oftime prescribed by the box.

Animal CellPrepare the Jello as instructed on the packaging. Before the Jello solidifies, place all the candiesin. Place the cupcake in the beaker and put it in as well, making sure the cupcake stays dry.Refrigerate for the amount of time prescribed by the box.

IV. DataA. Drawing of Plant CellSee Separate Sheet

B. Drawing of Animal CellSee Separate Sheet

V. Conclusion1. Was the cell you created prokaryotic or eukaryotic? How can you tell?The cell was eukaryotic. I could tell because It had a membrane-bound nucleus and organelles.

2. List three ways in which your cell model could be more accurate.The candies dissolved in the jello mix and so perhaps a way could be found to make them notdissolve. There could be a way to differentiate between the cell membrane and the cell wall besides the shape. Finally, we could use something more transparent than the jello is.

3. Create a Venn Diagram that shows some of the differences and similarities (three each) between a plant and animal cell.

Animal Cell Both Plant CellNo cell wall Cell membrane Cell wall

No chloroplasts Membrane-bound Nucleus ChloroplastsNo large vacuole Contain Cytosol Large Vacuole

4. One of the main differences between a plant and animal cells is that an animal cell lacks acell wall. Research and explain how this slight physical difference has altered the physical characteristics and development of animal cells.This has made animal cells more flexible than plant cells and has also made it easier to move. Animal cells lack the structure and protection that the cell wall provides.

5. Describe the effect that another one of these differences has had on the development of plantor animal cells.Animal cells lack chloroplasts. Plant cells are able to produce their own food and therefore do not have to be mobile in order to find it. Plant cells therefore have to go find food.

6. Create an analogy relating all the parts of a plant or animal cell to something of your choosing. An animal cell is similar to a farm. The mitochondria are the combine harvesters which harvest the crops. The nucleus is the farm house from which the commands of the farmer are issued. The cell membrane is the gate and fence of the farm which lets things in and out. The lysosomes are the birds that eat the dead plants and seeds. The endoplasmic reticulum is the truck that carries all the crops from place to place. The Golgi apparatus is the processing plant after which the crops leave the farm. The ribosomes are the farm hands which help produce the crops.

7. Name three ways in which cells are able to control their movements.They move by using cilia, flagella, and by pseudopodium.

8. Identify what materials were used to represent the various parts of your cell model. Where these good representations? Why or why not?The cupcake represented the nucleus, but it was not a good representation because it is not multi-layered like the nucleus is. The jello is a good representation because the cytosol has a gelatin-like texture. The pan was a good representation of the cell wall because of its rigid structure but not of the cell membrane because is is completely inflexible. The Jolly Ranches were a good representation of both the chloroplasts and the mitochondria. Because they were the same relative size and shape. The Twizzlers were not a good representation of the cytoskeleton because they are too relatively large. The Fruit by the Foot are a good representation because they are the same relative size and shape. The jawbreakers were good lysosomes because they are the same relative size and shape. The Flat Jolly Ranchers are not good representations of the Golgi apparatus because it is too thick and is not the same curvy shape. The Sweet Tarts made good ribosomes because they are the same relative size and shape. The Tupperware was a good vacuole because it was the same relative size and shape and it held out the cytosol.

9. Explain why the following statement is true or not: All cells are bound by a solid cell membrane.It is not true because prokaryotic cell have only a cell wall and a cell membrane tends to act more as a fluid than a solid.

10. In one to two paragraphs, explain what you got of the lab. Was it helpful or not? Explain. This lab put the structure of a cell in a whole new perspective. Instead of thinking of each component individually, I thought of the entity as a whole and not just a jumble of parts. The lab was helpful because the candies attached a point of association with the organelles. The lab was certainly a lot of fun and I know that everyone else enjoyed it.