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Transcript
Name: ________________________________________________________ Date: ____________________________________ Period ______________________ Cells WebQuest (revised mgolenberke 2015) • • • Part I: Open up the app 3D Cell Simulation and Stain Tool on your iPad. (original worksheet) Go to 3D Cell Explore Click on “Structures” on the right tool bar (Do not worry about peroxisomes, autophagosomes, or the two different types of cytoskeleton (actin and tubulin)) Answer the following questions by clicking on each of the organelles and reading their descriptions. 1. Which organelle is also known as the “control center” of the cell? ________________________________________________________________________ 2. Which organelle is found within the nucleus that assembles ribosomes? (hint: from ribosomal RNA) ________________________________ 3. How can the nucleus access the cytoplasm? ________________________________________________________________________________________________ 4. What is the function of the Golgi apparatus? ________________________________________________________________________________________________ 5. From where does the Golgi apparatus receive proteins? __________________________________________________________________________________ 6. From the Golgi apparatus, where do the vesicles containing proteins go? _______________________________________________________________ 7. The endoplasmic reticulum is continuous with what organelle part? ____________________________________________________________________ 8. What is the function of the rough ER? _______________________________________________________________________________________________________ 9. What is the function of the smooth ER? _____________________________________________________________________________________________________ 10. Which organelle is composed of a phospholipid bilayer and encloses the cytoplasm and cellular structures? ______________________ 11. What does selectively permeable mean? (It does not explicitly say in the description; try to come up with your own definition!) _____________________________________________________________________________________________________________________________________________________ 12. What is the function of lysosomes? _________________________________________________________________________________________________________ 13. Which organelle is also known as the “power house” of the cell? _______________________________________________________________________ 14. What molecule is generated to provide energy for all of the cell’s activities? __________________________________________________________ Part II. Use the website http://www.cellsalive.com/cells/cell_model.htm Click on “Plant/Animal” under: Interactive Cell Models You will see that the definitions for all of the organelles can be found on this page. Click: START THE ANIMATION To begin, Click on “Animal Cell” underneath the diagram to view an animal cell. Clicking once will highlight the organelle, clicking twice will give you the definition/function. 1. Click on “Nucleus.” What is found within the nucleus?___________________________________________________________ 2. Click on “Return to Cell Diagram.” Click on “Cytosol.” What is the cytosol mostly made up of? _________________________ 3. Click on “Return to Cell Diagram.” Click on “Golgi.” What is the Golgi apparatus important for? ________________________ 4. Click on “Return to Cell Diagram.” Click on “Lysosome.” What do lysosomes contain? ________________________________ 5. Click on “Return to Cell Diagram.” Click on “Cell membrane.” What type of molecule makes up the double layer in the cell membrane? _____________________________________________________________________________________________ 6. Click on “Return to Cell Diagram.” Click on “Mitochondrion.” Mitochondria produce ATP. What is ATP? ________________ 7. Click on “Return to Cell Diagram.” Click on “Smooth Endoplasmic Reticulum.” What different functions does smooth ER play? _______________________________________________________________________________________________________ 8. Click on “Return to Cell Diagram.” Click on “Rough Endoplasmic Reticulum.” Why does the rough ER appear pebbled? _____ 9. Click on “Return to Cell Diagram.” Click on “Ribosomes.” Ribosomes are the site of what process? ______________________ Click on “Plant Cell” underneath the diagram to view a plant cell. 1. Move your mouse over the plant cell to see the names of the organelles. Name five organelles found in a plant cell that were also studied in the animal cells questions above. ____________________________________________________________________ 2. What two organelles are found in the plant cell that you did not see in the animal cell? __________________________________ 3. Click on “Cell Wall.” What molecule makes up cell walls? _______________________________________________________ 4. Click on “Return to Cell Diagram.” Click on “Chloroplast.” What substance inside the chloroplast makes it green? __________ Click “View Bacterial Cell Model” in upper right to view the bacteria cell. 1. Look at the bacteria cell diagram: list three organelles that have been studied in either the plant or animal cell. _______________ 2. Look at the bacteria cell diagram: list four organelles found in neither the animal or plant cells. ___________________________ 3. Click on “Nucleoid.” What is found here? How is this structure different from a nucleus? _______________________________ 4. Click on “Capsule.” What is it made of? What does it do? ________________________________________________________ 5. Click on “Pili.” What is their function? What is another name for pili? _______________________________________________ 6. Click on “Flagella.” What is their purpose? Are their numbers and arrangements the same in all bacterial cells? ______________ 7. Although not on the diagram, scroll down to “Storage granules.” What is stored here? __________________________________ Part III: The Virtual Cell Worksheet http://www.ibiblio.org/virtualcell/ (original worksheet) SKETCH: Click on “The Virtual Cell Tour” and then on each organelle to fill in answers. 1. Centrioles are only found in __________________ cells. They function in cell _____________________. They have _____ Centriole groups of _____ arrangement of the protein fibers. Draw a picture of a centriole in the box. 2. Lysosomes are called ______________________ sacks. They are produced by the ________________ body. They consist Lysosomes of a single membrane surrounding powerful _______________ enzymes. Those lumpy brown structures are digestive _____________. They help protect you by __________________ the bacteria that your white blood cells engulf. _______________ act as a clean up crew for the cell. Zoom in and draw what you see. 3. Chloroplasts are the site of ______________________. They consists of a __________ membrane. The stacks of disk like Chloroplasts structures are called the ______________. The membranes connecting them are the _________________ membranes. Zoom in and draw a picture. 4. Mitochondrion is the _______________________ of the cell. It is the site of _______________________. It has a Mitochondrion ____________________ membrane. The inner membrane is where most _______________ respiration occurs. The inner membranes are __________ with a very large surface area. These ruffles are called ___________. Mitochondria have their own ________ and manufacture some of their own ___________. Draw a picture of the mitochondrion with its membrane cut. 5. Endoplasmic Reticulum (ER) is a series of double membranes that ________ back and forth between the cell membrane and the _______________. These membranes fill the ____________________ but you cannot see them because they are Endoplasmic Reticulum (ER) very ___________________. The rough E.R. has __________________________ attached to it. This gives it its texture. These ribosomes manufacture __________________________ for the cell. The ribosomes are the ______________________________ which manufacture proteins. Draw the rough ER with a ribosome. 6. Smooth E.R. ____________ ribosomes. It acts as a __________________________ throughout the cytoplasm. It runs from Smooth ER the cell membrane to the nuclear ________________ and throughout the rest of the cell. It also produces ___________________ for the cell. Draw a picture of the smooth ER. 7. Cell Membrane performs a number of critical functions for the ________. It regulates all that _____________ and leaves the Cell Membrane cell; in multicellular organisms it allows _________ recognition. Draw and shade the cell membrane. 8. Nucleus is called the ______________________ of the cell. It is a large __________ spot in eukaryotic cells. It Nucleolus _________________ all cell activity. The nuclear membrane has many ____________________. The thick ropy strands are the _____________________________. The large solid spot is the _____________________. The nucleolus is a spot of __________________ chromatin. It manufactures __________________________. The chromatin is _______________ in its active form. It is a ________________________________ of DNA and histone proteins. It stores the information needed for the manufacture of ____________________. Draw a picture of the nucleus and its nucleolus. 9. Golgi Body is responsible for packaging _________________________ for the cell. Once the proteins are produced by the Golgi Body ______________ E.R., they pass into the _______________ like cisternae that are the main part of the Golgi body. These proteins are then squeezed off into the little _________________ which drift off into the cytoplasm. Draw a picture of the Golgi Body as it is squeezing off the proteins. **Final Question: Which of these three resources did you like the best? ______Why? ________________________________