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BIOLOGY 204 GENERAL MICROBIOLOGY INSTRUCTOR: Dr A. Hemsley THEORY TEST 5 ANTELOPE VALLEY COLLEGE SPRING 2008 100 POINTS STUDENT NAME: ___________________________________ STUDENT I.D. NUMBER: _____________________________ • • • • • • • Perusal time = 10 minutes Test time = 105 minutes ANSWER ALL QUESTIONS Read ALL questions carefully during perusal time, you may write if you wish. Use the back of each sheet if you do not have enough writing space, but please label each answer. Question subheadings are NOT of equal points value. Points allocated for each subheading are shown at the end of the question. GOOD LUCK! QUESTION 1 (Total =10 points) Match entries in the left column with answers from the lettered choices in the right column. Write your letter choice to the far left of each question in the spaces provided. Use each answer only ONCE. (1 Point per correct pair) _____ 1. _____ 2. Disinfection process that is used in drinking water purification Using microbes to metabolize toxic materials released into the environment a. Methane b. Anaerobic _____ 3. Example of hard cheese type c. Carbon dioxide _____ 4. Additional sewage treatment in environmentally sensitive zones d. Camembert _____ 5. Type of bacteria used to degrade sludge in sewage treatment e. Bioremediation _____ 6. Genus of bacteria commonly used in secondary sewage treatment f. _____ 7. Gaseous energy source derived from sludge treatment Ricotta g. Ozonation _____8. Gas produced in sewage liquid treatment h. Tertiary _____ 9. Example of a soft cheese i. Zooglea _____ 10. Immature cheese j. Cheddar page 1 QUESTION 2 (Total =10 points) Provide definitions or explanations for the following terms (2 points per definition) BIOFILMS ACTIVATED SLUDGE MALT PRODUCTION ASEPTIC PACKAGING PRIMARY METABOLITE page 2 QUESTION 3 (Total =20 points) A. Outline the steps involved in wine production ? (5) B. What happens in the manufacture of cottage cheese? (5) C. Describe the features of a fecal coliform D. List the steps performed in the treatment of sewage water (5) (5) page 3 QUESTION 4 (Total =20 points) A. DISEASE: IMPETIGO OF THE NEWBORN (i) Name the organism that causes this disease B. C. D. (ii) What is one reason why this disease breaks out in hospital wards?? (iii) Name one strategy which could minimize this danger within the hospital (iv) What is the treatment for this condition? DISEASE: CANDIDIASIS (i) Name the organism that causes this disease (ii) Name 2 portals of entry for the microbes (iii) What source maintains these microbes within our communities? (iv) What is the treatment for this disease? DISEASE: GAS GANGRENE (i) Name the organism that causes this disease (ii) How is the disease contracted? (iii) What are the symptoms, and what causes these symptoms? (iv) What is the treatment for GAS GANGRENE? (6) (6) (6) The rabies virus has an unusual property that assists in treatment. What is this property, and what treatment can be given because of this property? (2) page 4 QUESTION 5 (Total =20 points) Fill in the blanks in the following sentences. (1 point per correct sentence) 1. An example of a semi-soft cheese is ____________________________. 2. The most commercially significant genus of bacteria in the cheese manufacturing industry is ____________________________. 3. One food preservation method considered “modern” is ____________________________. 4. A historical example of food preservation is ____________________________. 5. Bacteria that survive and grow in canned goods subjected to high heat levels can cause ____________________________ food spoilage. 6. Two examples of foods that may be processed by pasteurization are ____________________________ and ____________________________. 7. Meningitis caused by BACTERIA is ______________ ______________than meningitis caused by VIRUSES. 8. One of the 3 most common genera of bacteria that cause meningitis is_______________________. 9. ____________________________is one of the 2 most common genera of bacteria causing skin and wound infections. 10. Two features of the skin that discourage bacterial growth are ____________________________ and ____________________________. 11. Impetigo in school age children is caused by __________________________. 12. Toxic shock syndrome is a result of toxic septicemia caused by the bacterial species _____________________________. 13. The most common Streptococcus subgroup causing human infections is the ______________________. 14. A genus of soil bacteria that may cause ear infections and respiratory disease in burn victims is ____________________________. 15. ____________________________ is a recurrence of chickenpox in later life . 16. The fungi that cause the skin disorders known as tineas primarily feed off the skin protein ____________________________ . 17. ________________ __________________ is a fungus that may cause subcutaneous infections in gardeners and agricultural workers. (species) 18. ____________________________ is the only disease human health programs have eradicated globally . 19. One bacterial genus that causes serious eye infections is _______________________. 20. _____________________________ is the bacterial species that causes Hansen’s disease. page 5 QUESTION 6 (Total =20 points) A. Sarah attended the July 4th picnic and social event organized by her church last year. She had a good time and while she was there she ate devilled eggs, clam chowder and a piece of pie covered with a homemade custard topping. During the evening, she was disturbed by vomiting and diarrhea. Her symptoms persisted for several days, after which she recovered. Name two microbes that might have made her ill. Explain why you think so. (5) She is planning to attend the picnic this year as well. What advice would you give to her or to the picnic organizers to ensure a healthier experience? (5) C. List the five most significant pieces of information you have gained from this Microbiology class and how they will help you in your career or at home. Please do not use the answers to questions from this test! (10) page 6