This quiz works best with JavaScript enabled. Home > Agriculture > Science > Microbiology > Microbiology Agriculture – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Microbiology Agriculture Quiz 3 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which process best describes how pure-bred dogs have produced? A) Selective breeding. B) Cross-breeding. C) Cloning. D) Creating hybrids in a lab. Show Answer Correct Answer: A) Selective breeding. 2. How do animals obtain the carbon and nitrogen they need for building materials? A) By performing cellular respiration. B) By breathing. C) By performing photosynthesis. D) By eating food. Show Answer Correct Answer: D) By eating food. 3. Which term refers to the spread of disease in a small region? A) Antibiotic. B) Epidemic. C) Pandemic. D) Parasitic. Show Answer Correct Answer: B) Epidemic. 4. The study of the function and diversity of microbes in their natural environment. A) Soil microbiology. B) Plant microbiology. C) Environmental Microbiology. D) Agricultural Microbiology. Show Answer Correct Answer: C) Environmental Microbiology. 5. Which type of microbe is the smallest? A) Viruses. B) Fungi. C) Bacteria. D) Protists. Show Answer Correct Answer: A) Viruses. 6. Many diseases transmitted by vectors lead to the death of millions of people in the world. Which best explains why African countries are harder hit than other regions of the world? A) Increased number of insects. B) Increased climatic variations. C) Increased pressure from human activities. D) None of above. Show Answer Correct Answer: A) Increased number of insects. 7. Found in the nucleus of all living cells; carries the organism's hereditary information. A) Cloning. B) Embryo. C) Cell. D) DNA. Show Answer Correct Answer: D) DNA. 8. Which type of microbe is not a living thing? A) Viruses. B) Fungi. C) Protists. D) Bacteria. Show Answer Correct Answer: A) Viruses. 9. Why can a person catch a cold many times? A) Changes in weather conditions can cause a person to get a cold. B) People do not develop an immunity to a virus and can be infected over and over. C) There are many kinds of viruses that cause colds and the person can be infected by different cold viruses each time. D) People share food and drinks more often than they think. Show Answer Correct Answer: C) There are many kinds of viruses that cause colds and the person can be infected by different cold viruses each time. 10. Examples of viral diseases A) Strep throat, pneumonia, leprosy, tuberculosis, Lyme disease. B) Athletes foot, ring worm, candida, jock itch. C) Influenza (flu), common cold, chickenpox. measles, AIDS, yellow fever. D) Tick, flea, tapeworm, mosquito, leech, lice, bedbug. Show Answer Correct Answer: C) Influenza (flu), common cold, chickenpox. measles, AIDS, yellow fever. 11. Are non-cellular entities that consist of a nucleic acid core surrounded by a protein coat. A) Virus. B) Protozoa. C) Bacteria. D) Fungi. Show Answer Correct Answer: A) Virus. 12. Humans with HIV can transmit HIV virus to other humans even though they do not show the symptoms of the disease. which term BEST describes the unaffected individuals? A) Carrier. B) Vector. C) Contagion. D) Mutagen. Show Answer Correct Answer: A) Carrier. 13. Which is the most effective defense against the chicken pox virus? A) Antibiotics. B) Diet. C) Vaccines. D) None of above. Show Answer Correct Answer: C) Vaccines. 14. A mosquito that transmits malaria from one person to another is A) A parasite. B) An infection. C) A bacterium. D) A vector. Show Answer Correct Answer: D) A vector. 15. Health department officials are trying to identify the source of an outbreak of an intestinal virus. Which is the MOST LIKELY source of the virus? A) Polluted air. B) Poor nutritional habits. C) Contaminated water. D) Lack of exercise. Show Answer Correct Answer: C) Contaminated water. 16. Which is a possible result of overusing antimicrobial substance? A) Increase number of disease- causing bacteria. B) Increased number of antibiotic-sensitive bacteria. C) Decreased number of disease-causing viruses. D) Increased number of antibiotic-resistant bacteria. Show Answer Correct Answer: D) Increased number of antibiotic-resistant bacteria. 17. Which tool is most responsible for preventing future pandemics of smallpox? A) Worldwide vaccinations for smallpox. B) Global education about smallpox. C) Better worldwide sanitation. D) Improved global quarantine facilities. Show Answer Correct Answer: A) Worldwide vaccinations for smallpox. 18. This root means to have the character of A) Amyl. B) Alb. C) Alg. D) Al. Show Answer Correct Answer: D) Al. 19. Making a genetically identical copy of DNA or of an organism. A) Protein. B) Cloning. C) Cell. D) DNA. Show Answer Correct Answer: B) Cloning. 20. A reproduction cycle of a specific bacterium in ideal conditions is 10 minutes. Assuming that the conditions are ideal, how many bacteria are present after 2 hours? A) 4096. B) 200. C) 1024. D) 20. Show Answer Correct Answer: A) 4096. 21. A scientist examining a specimen in a microscope sees that it is a single-celled microorganism. What does the scientist observe? A) Bacteria. B) Virus. C) Fungi. D) None of above. Show Answer Correct Answer: A) Bacteria. 22. How do viruses differ from other disease-causing organisms? A) Viruses multiply inside infected cells. B) Viruses can be treated with antibiotics. C) Viruses are not made up of cells. D) Viruses are transmitted through coughing or sneezing. Show Answer Correct Answer: C) Viruses are not made up of cells. 23. The practice of farming. A) Selective breeding. B) Agriculture. C) Cloning. D) Bioremediation. Show Answer Correct Answer: B) Agriculture. 24. This root means water A) Apo. B) Ase. C) Ate. D) Aqu. Show Answer Correct Answer: D) Aqu. 25. How can the rate of an infectious disease be drastically reduced? A) By wearing clean clothing daily. B) By preventing transmission between people. C) By taking medication daily. D) By performing dental hygiene three times each day. Show Answer Correct Answer: B) By preventing transmission between people. 26. Which would have MOST LIKELY occurred if antibiotics had not been discovered? A) All people would have bacterial infecitons. B) All people would have died from bacterial infections. C) There would have been decreased natural immunity to bacteria. D) There would have been an increased number of childhood deaths. Show Answer Correct Answer: D) There would have been an increased number of childhood deaths. 27. Given favorable conditions, which disease-causing agent could quickly multiply into colonies of billions of cells in the space of a drop of water? A) Viruses. B) Bacteria. C) Protists. D) Fungi. Show Answer Correct Answer: B) Bacteria. 28. This microbes differ from true bacteria in their cell wall structure and lack peptidoglycan. Have the following groups:methanogen, halophiles, thermophiles, and psychrophiles. A) Bacteria. B) Archaea. C) Fungi. D) Protozoa. Show Answer Correct Answer: B) Archaea. 29. Which type of microbe can be prevented with vaccines? A) Viruses. B) Bacteria. C) Fungi. D) Protists. Show Answer Correct Answer: A) Viruses. 30. Which characteristic makes bacteria suitable for scientific research of disease? A) They are multicellular. B) They reproduce rapidly. C) They keep virus populations under control. D) They grow in four stages allowing growth control. Show Answer Correct Answer: B) They reproduce rapidly. ← PreviousNext →Related QuizzesScience QuizzesAgriculture QuizzesMicrobiology Agriculture Quiz 1Microbiology Agriculture Quiz 2Microbiology Agriculture Quiz 4Microbiology Agriculture Quiz 5Microbiology Agriculture Quiz 6Microbiology Agriculture Quiz 7 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books