This quiz works best with JavaScript enabled. Home > Science > Biology > Virus And Bacteria – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Virus And Bacteria Quiz 42 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Can evolve and become resistant to treatment A) Viruses. B) Bacteria. C) Both. D) None of above. Show Answer Correct Answer: C) Both. 2. Tiny single-celled organisms that live almost everywhere A) Ribosomes. B) Cytoplasm. C) Bacteria. D) Virus. Show Answer Correct Answer: C) Bacteria. 3. HIV is an example of what kind of transmission? A) Bloodborne. B) Waterborne. C) Airborne. D) None of above. Show Answer Correct Answer: A) Bloodborne. 4. How many types of organisms can belong to one species? A) No more than five. B) More than 2. C) Less than 3. D) Only one. Show Answer Correct Answer: D) Only one. 5. A thick-walled spore containing genetic material and proteins that allows the bacteria to survive a wide variety of harsh conditions. A) Bacilli. B) Endospore. C) Host. D) Pathogenic. Show Answer Correct Answer: B) Endospore. 6. Bacteria that are producers ..... A) Make their own food. B) Feed on other organisms. C) Feed on dead organisms. D) None of these. Show Answer Correct Answer: A) Make their own food. 7. A nonliving (sort of) microorganism that cannot reproduce without a host A) Human Cell. B) Bacteria. C) Lyse. D) Virus. Show Answer Correct Answer: D) Virus. 8. What happens during the "Integration" stage of the lysogenic cycle? A) The viral DNA enters the host. B) A virion is produced. C) Viral DNA becomes injected into the host cell. D) Viral DNA joins with host cell DNA to create a prophage (provirus). Show Answer Correct Answer: D) Viral DNA joins with host cell DNA to create a prophage (provirus). 9. The organelle described as a long, thin-like projection that helps with movement A) Mitochondria. B) Chlorplast. C) Flagella. D) Cell Membrane. Show Answer Correct Answer: C) Flagella. 10. Which of the following is an example of a retrovirus? A) HIV. B) Influenza. C) Common cold. D) Measles. Show Answer Correct Answer: A) HIV. 11. An organism that uses energy from sunlight to convert carbon dioxide and water to carbon compounds A) Photoautotroph. B) Chemoautotroph. C) Chemoheterotroph. D) Photoheterotroph. Show Answer Correct Answer: A) Photoautotroph. 12. A person with AIDS is likely to develop infectious diseases because the virus that causes AIDS A) Destroys cancerous cells. B) Damages the immune system. C) Increases the rate of antibody production. D) Increases the rate of microbe destruction. Show Answer Correct Answer: B) Damages the immune system. 13. What can be said about all organisms that make their own food by photosynthesis A) They are all plants. B) They are all vascular. C) They are autorophs. D) They are heterotrophs. Show Answer Correct Answer: C) They are autorophs. 14. What's an active virus? A) A virus that becomes immediately hidden once entering a cell. B) A virus that becomes immediately active once entering a cell. C) A technique that takes advantage of a virus's ability to enter a cell. D) None of above. Show Answer Correct Answer: B) A virus that becomes immediately active once entering a cell. 15. When a virus infects a host, it first attaches to the host cell, injects its genetic material, then A) Assembles new viruses. B) Reads the genetic code. C) Releases new viruses. D) Destroys the host cell. Show Answer Correct Answer: B) Reads the genetic code. 16. The tryptophan operon is A) Permanently turned on. B) Turned on when tryptophan is present in the growth medium. C) Turned off only when glucose is present in the growth medium. D) Turned off when tryptophan is added to the growth medium. Show Answer Correct Answer: D) Turned off when tryptophan is added to the growth medium. 17. What important role do bacteria called decomposers play? A) The return basic chemicals to the environment. B) They slow down food spoilage. C) Kill harmful bacteria. D) Produce vitamins in your intestine. Show Answer Correct Answer: A) The return basic chemicals to the environment. 18. An organism that is photosynthetic but needs organic compounds as a carbon source A) Chemoheterotroph. B) Chemoautotroph. C) Photoautotroph. D) Photoheterotroph. Show Answer Correct Answer: D) Photoheterotroph. 19. Some fungi secrete substances that are toxic to bacteria that compete with them for food. Scientists have used their knowledge of this ability of fungi in order to produce which of the following substances? A) Yogurt. B) Fertilizers. C) Plastic. D) Antibiotics. Show Answer Correct Answer: D) Antibiotics. 20. Which one of the following is a viral disease transmitted to man by the bite rabid animals particularly dogs? A) Cholera. B) Plague. C) Malaria. D) Rabies. Show Answer Correct Answer: D) Rabies. ← PreviousNext →Related QuizzesScience QuizzesVirus And Bacteria Quiz 1Virus And Bacteria Quiz 2Virus And Bacteria Quiz 3Virus And Bacteria Quiz 4Virus And Bacteria Quiz 5Virus And Bacteria Quiz 6Virus And Bacteria Quiz 7Virus And Bacteria Quiz 8Virus And Bacteria Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books