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MICROORGANISMS By Ms. Kinder

MICROORGANISMS By Ms. Kinder. www.ovpr.uga.edu/.../ sum02art/bp_1bacteria.jpg. peer.tamu.edu /. Utah State Standards. Standard V: Students will understand that microorganisms range from simple to complex, are found almost everywhere, and are both helpful and harmful.

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MICROORGANISMS By Ms. Kinder

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  1. MICROORGANISMSBy Ms. Kinder www.ovpr.uga.edu/.../ sum02art/bp_1bacteria.jpg

  2. peer.tamu.edu/

  3. Utah State Standards • Standard V: Students will understand that microorganisms range from simple to complex, are found almost everywhere, and are both helpful and harmful. • Objective 2: Demonstrate the skills needed to plan and conduct an experiment to determine a microorganism’s requirements in a specific environment.

  4. Intended Learning Outcomes: • Use Science Process and Thinking Skills • Plan and conduct simple experiments. • Formulate simple research questions. • Predict results of investigations based on prior data. • Use data to construct a reasonable conclusion. www.the-ba.net

  5. All bacteria have similar characteristics. • They are made up of a single cell with a cell wall and do not have a nucleus. • Some bacteria can make   their own food, but a large majority feed on other organisms. • In addition, most bacteria need oxygen to survive. www.ou.edu/class/pheidole/ General%20Bacteria.jpg

  6. Bacteria are so small that about 1,000 could fit on the head of a pin. www.agen.ufl.edu

  7. BACTERIA INFORMATION • Bacteria are classified into three groups according to their shape: round (cocci), spiral (spirilla), and rod (bacilli) shape. • Some round shape bacteria can cause infections in people. • Some spiral shape bacteria are used to make cheese. • Some rod shaped bacteria have been known to cause food poisoning. aquat1.ifas.ufl.edu/ guide/bacecoli.jpg www.redcolony.com/ pics/content/bacteria.jpg io.uwinnipeg.ca/.../ 27-03c-HelicalProkaryote.jpg

  8. There are more than 10,000 kinds of bacteria and an unknown number still waiting to be discovered. www.elements-of-design.net/

  9. The human body has more bacteria than it has cells. An unborn baby is completely free of bacteria, but the instant they are born they acquire billions of bacteria. Bacteria are essential for a healthy body. www.pregnancy-leads-to-new-babies.com/ images/

  10. When people become sick, they go to the doctor's office expecting a miracle cure. • Most often, the best advice often times is to go home, drink lots of fluids and rest. • There is no medication available to combat a viral infection. • As a result, antibiotics are becoming overprescribed and misused. Over time, the microbes will become resistant and the antibiotics will become totally ineffective. web.princeton.edu www.medem.com/MEDEM/ images/

  11. www.irishhealth.com

  12. 1. What is the function of the cilia in the illustration? A. To move the paramecium B. To take in water and           remove waste C. To control cell division D. To make food from sunshine and air ic.ucsc.edu/~wxcheng/ envs161/Lecture8/ciliate.jpg

  13. Answer to: What is the function of the cilia in the illustration? • A. To move the paramecium B. To take in water and remove waste C. To control cell division D. To make food from sunshine and air ic.ucsc.edu/~wxcheng/ envs161/Lecture8/ciliate.jpg

  14. 2. Which of the following correctly describes the size of fungi compared to the size of bacteria? A. Fungi are larger. B. Bacteria are larger. C. They are about the same size. D. They are the same size but different shapes. BACTERIA www.dph.state.ct.us/ BRS/food/bacteria.JPG FUNGI www.lakelandphotohols.com/ images

  15. Answer to: Which of the following describes the size of fungi compared to the size of bacteria? • A. Fungi are larger. BACTERIA www.dph.state.ct.us/ BRS/food/bacteria.JPG FUNGI www.lakelandphotohols.com/ images

  16. 3. Use the diagram to answer the question. What composes the paramecium’s body? A. thousands of cells B. four cells C. one cell and its parts D. several body organs pantransit.reptiles.org science.kennesaw.edu/.../ pictures/paramecium.gif

  17. Answer to: Use the diagram to answer the questions. What composes the paramecium’s body? • C. One cell and its parts pantransit.reptiles.org science.kennesaw.edu/.../ pictures/paramecium.gif

  18. 4. Which of the following describes the most ideal location for microorganisms to live? A. underwater B. In warm, humid places C. Nearly everywhere D. Sunny, dry areas earthafr.jpg

  19. Answer to: Which of the following describes the most ideal location for microorganisms to live? • B. in warm, humid places earthafr.jpg

  20. 5. These foods were left in plastic bags in a warm container for 5 days. A student recorded observations and data. Which of these hypotheses was tested? A. Foods left in the dark will rot differently than foods in light. B. Will foods react differently in plastic bags? C. If different foods are used, then different bacteria will grow. D. Which kind of bacteria is best for making cheese?

  21. Answer to: These foods were left in plastic bags in a warm container for 5 days. A student recorded observations and data. Which of these hypotheses was tested? • C. If different foods are used, then different bacteria will grow.

  22. 6. What variable was tested in this experiment? A. the length of time it takes for food to rot B. what kind of bags allows rotting to occur C. the temperature microorganisms like best D. how different kinds of food rot www.flickr.com

  23. Answer to: What variable was tested in this experiment? • D. How different kinds of food rot www.flickr.com

  24. 7. Which of the following is a conclusion you could make concerning this data? A. Bread is more likely to rot than cheese or meat. B. Bread is better for you than cheese. C. Different microorganisms grow on different foods. D. Meat is less safe to eat than other foods because it turns brown. whatcom.wsu.edu

  25. Answer to: Which of the following is a conclusion you could make concerning this data? • C. Different microorganisms grow on different foods. whatcom.wsu.edu

  26. 8. How might a student improve this experiment? • Count the number of microorganisms on each food with a toothpick. B. Use a microscope to begin to identify the kinds of microorganisms. C. Add some strong chemicals and see what they do to the foods. D. Kill the microorganisms and make the food safe. vegetablemdonline.ppath.cornell.edu

  27. Answer to: How might a student improve this experiment? • B. Use a microscope to begin to identify the kinds of microorganisms. vegetablemdonline.ppath.cornell.edu

  28. 9. A scientist wonders if a certain bacteria can survive being frozen. Which of the following is a correctly written hypothesis? A. If bacteria are frozen, then they will die. B. Bacteria are small, microscopic life forms. C. The bacteria died when it was frozen. D. Bacteria survive best when they are moist. ag.arizona.edu

  29. Answer to: A scientist wonders if a certain bacteria can survive being frozen. Which of the following is a correctly written hypothesis? • A. If bacteria are frozen, then they will die. ag.arizona.edu

  30. 10. What have experiments shown scientists about the cause of disease? A. Diseases are caused by sudden changes in the weather. B. Diseases are caused by too much exercise. C. Microorganisms cause many diseases. D. Little can be done to prevent disease. www.visualworship.com

  31. Answer to: What have experiments shown scientists about the cause of disease? • C. Microorganisms cause many diseases. www.visualworship.com

  32. 11. Which of the following practices is based on an understanding of microorganisms? • walking downhill instead of running B. looking both ways before crossing a street C. wearing lightweight clothes in the summer D. washing your hands before eating www.agen.ufl.edu

  33. Answer to: Which of the following practices is based on an understanding of microorganisms? • D. How different kinds of food rot www.agen.ufl.edu

  34. 12. What important function do microorganisms have in an ecosystem? A. They produce food from sunlight. B. They reduce the number of large animals. C. They decompose dead organisms. D. They help clean the air. www.wormdigest.org

  35. Answer to: What important function do microorganisms have in an ecosystem? • C. They decompose dead organisms. www.wormdigest.org

  36. 13. How does adding yeast change bread dough? A. Bubbles of gas form in the dough. B. Yeast changes the bread’s color. C. More dough is produced as the yeast multiply. D. Yeast makes it less lumpy. www.breadcomestolife.com/

  37. Answer to: How does adding yeast change bread dough? • A. Bubbles of gas form in the dough. www.breadcomestolife.com/

  38. 14. How do bacteria help our bodies function? • They make our muscles and lungs stronger. B. They help to digest food in the intestines. C. They circulate in our blood and help carry oxygen. D. They make our skin flexible and clean. eahec.ecu.edu

  39. Answer to: How do bacteria help our bodies function? • B. They help to digest food in the intestines. eahec.ecu.edu

  40. 15. Which of the following correctly pairs a microorganism with the disease it causes? A. Protozoa= Flu B. Virus= Athlete’s Foot C. Bacteria=Strep Throat D. Fungi = a cold botit.botany.wisc.edu/ www.genrecookshop.com www.lib.uiowa.edu www.jasonanelson.com/

  41. Answer to: Which of the following correctly pairs a microorganism with the disease it causes? • C. Bacteria and Strep Throat www.lib.uiowa.edu

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