Biology Organelle Web Quest Key

Cell Organelle Webquest 5. Click on “Return to Cell Diagram.” Click on “Golgi.” What is the function of the Golgi apparatus? Molecules which are secreted pass through the golgi, why would a cell need to discharge or expel materials? The golgi packages and transports molecules. Molecules that need to leave the cell include waste products or chemical signals. 1. Click on “Nucleus.” Describe the contents and the function of the nucleus. The nucleus contains DNA which controls the cell and provides its unique characteristics. 6. Click on “Return to Cell Diagram.” Click on “Cell membrane.” What type of molecule makes up the double layer in the cell membrane? Describe the function of a. If all cells in your body have the the cell membrane. same genetic material, how do we have a wide variety of cells (nerve The cell membrane is made of two cells, liver cells, skin cells, etc.) with layers of phospholipids. It controls different characteristics? the entry/exit of nutrients like Genes can be turned on or off to make cells water and waste products. unique even though they have identical DNA. a. If a protein built by the cell was destined for secretion, list the 2. Click on “Return to Cell Diagram.” Click sequence of organelles responsible on “Cytosol.” Describe the contents of the for the production of and discharge cytosol. What important activities take of the protein. place in the cytosol that maintain cell Ribosome to Rough ER to Golgi to Cell health? Membrane The cytosol contains proteins which keep the cell healthy. Much of the cells metabolism takes place in the cytosol. 7. Click on “Return to Cell Diagram.” Click on “Lysosome.” Describe the function of a 3. Click on “Return to Cell Diagram.” Click lysosome. How are lysosomes similar to the on “Ribosomes.” Explain in one sentence digestive system? how the function of a ribosome. Lysosomes break down waste and Ribosome put protein together which is molecules. They contain enzymes that called protein synthesis. hydrolize molecules, just like the digestive system. 4. Click on “Return to Cell Diagram.” Click on “Rough Endoplasmic Reticulum (ER).” 8. Click on “Return to Cell Diagram.” Click What structures surround the rough ER? on “Mitochondrion.” The mitochondria What happens to a protein after it’s provide what for a cell? Name the molecule synthesized on the rough ER? that cells use as an energy source. The mitochonria provides energy Ribosomes surround the rough ER. Proteins for all the cells activities made by these ribosomes are next transported (growth, reproduction, by the rough ER. metabolism). ATP is the molecule 1 the mitochondria makes for energy. 14. Label all the organelles discussed in the previous questions in the plant and animal cell. Nucleus Cell Membrane 9. Click on “Return to Cell Diagram.” Click on “Smooth Endoplasmic Reticulum.” What different functions does smooth ER play? The smooth ER can make lipids, hormones and also breaks down toxins. Ribosomes (dots) a. If a hormone or waste product is made in the smooth endoplasmic Smooth Er reticulum, what organelles will it pass through before leaving the cell? Smooth ER to Golgi to Cell Membrane Click on “Plant Cell” underneath the diagram to view a plant cell. Lysosome Rough ER Golgi 10. Move your mouse over the plant cell to see the names of the organelles. Name five organelles found in a plant cell that were Mitochondria also studied in the animal cells questions above. Nucleus, Mitochondria, Ribosomes, ER, Lysosome, Cell Membrane Cell Wall 11. What two organelles are found in the plant cell that you did not see in the animal cell? Cell Membrane Chloroplast, Cell Wall Chloroplast 12. Click on “Cell Wall.” What is the function of a cell wall? Lysosome The cell wall is a rigid barrier that keeps the shape of the cell. Golgi Nucleus 13. Click on “Return to Cell Diagram.” Click Mitochonria on “Chloroplast.” What is the role of a chloroplast in plant cells? Chloroplasts convert carbon dioxide into a sugar through the chemical reaction of photosynthesis. 2 Smooth ER