Get the Gizmo ready: Which Organelle? Select View animal cell or View plant cell, and click Sample. Set the Zoom to 500x. Question: Cells perform specialized functions in each organism and their organelles work to support those functions. What organelles are likely to be present in high numbers in the following cells? 1. Choose and Support: For each cell type, select which organelle(s) will be most important for the cell and support your choice with evidence from the Gizmo. Cell type Cell function A paramecium lives in Paramecium fresh water and has to pump water out of the cell to maintain a balance. Muscle Muscle cells contract to produce movement Pancreas Pancreas cells secrete digestive enzymes into the small intestine. Salivary gland cells Salivary secrete saliva into the gland mouth to begin digestion. Sperm Sperm cells travel swiftly to fertilize an egg cell. Goblet cells Goblet cells secrete lubricating mucus in the respiratory and digestive tracts. Root cap Root cap cells in a cells plant secrete a slimy lubricant that helps the roots move between soil particles. Mesophyll Plants’ mesophyll palisade palisade cells receive cells sunlight for photosynthesis. Meristem Meristem cells are cells where plant growth takes place. Important Evidence to support your organelle(s) choice 2. Challenge Yourself: The endoplasmic reticulum is responsible for manufacturing, processing and transporting the chemical compounds used and produced by the cell. The rough ER processes and transports proteins synthesized by the ribosomes on the ER. Smooth ER does not have ribosomes attached. What molecules are manufactured by the smooth ER?___________________________ ______________________________________________________________________ What types of cells are likely to have lots of smooth ER? ________________________ ______________________________________________________________________ Answer Key Get the Gizmo ready: Which Organelle? Select View animal cell or View plant cell, and click Sample. Set the Zoom to 500x. Question: Cells perform specialized functions in each organism and their organelles work to support those functions. What organelles are likely to be present in high numbers in the following cells? 3. Choose and Support: For each cell type, select which organelle(s) will be most important for the cell and support your choice with evidence from the Gizmo. (Example answers but any organelle could be correct as long as it’s supported) Cell type Paramecium Muscle Pancreas Salivary gland Sperm Goblet cells Root cap cells Mesophyll palisade cells Meristem cells Cell function Important Evidence to support your organelle(s) choice A paramecium lives in fresh water and has to pump water out of cell to maintain a balance. Muscle cells contract to produce movement Vacuole Vacuoles store water and can dispose of it out of the cell through the contractile vacuole. Mitochondria Pancreas cells secrete digestive enzymes into the small intestine. Salivary gland cells secrete saliva into the mouth to begin digestion. Golgi Apparatus or Ribosomes Sperm cells travel swiftly to fertilize an egg cell. Goblet cells secrete lubricating mucus in the respiratory and digestive tracts. Root cap cells in a plant secrete a slimy lubricant that helps the roots move between soil particles. Plants’ mesophyll palisade cells receive sunlight for photosynthesis. Meristem cells are where plant growth takes place. Mitochondria It takes energy to contract the cell and mitochondria convert nutrients into energy. Golgi package chemicals to be exported and ribosomes produce proteins found in insulin The manufacture and transport of chemicals and proteins found in the ER are in saliva and packaged in Golgi Need energy to power flagellum for travel to egg Package chemicals and protein like mucus to export outside of cell Endoplasmic Reticulum and Golgi Golgi Golgi Secretion of proteins packaged in Golgi Chloroplast Converts sun’s energy into chemical energy Nucleus Controls reproduction of cells 4. Challenge Yourself: The endoplasmic reticulum is responsible for manufacturing, processing and transporting the chemical compounds used and produced by the cell. The rough ER processes and transports proteins synthesized by the ribosomes on the ER. Smooth ER does not have ribosomes attached. What molecules are manufactured by the smooth ER? lipids, fatty acids What types of cells are likely to have lots of smooth ER? liver has enzymes for detoxification of drugs and metabolic by-products, and reproductive organs for producing hormones such as testosterone and estrogen