This quiz works best with JavaScript enabled. Home > Science > Virus And Bacteria – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Virus And Bacteria Quiz 28 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Endospores are created by bacteria A) When environmental conditions become unfavorable. B) To woo female bacteria. C) As a defense mechanism against invading viruses. D) When they produce eggs. Show Answer Correct Answer: A) When environmental conditions become unfavorable. 2. What is a flagellum? A) Small hair-like structures. B) The protists national flag. C) A long whip-like tail. D) "false-feet". Show Answer Correct Answer: C) A long whip-like tail. 3. Viral mutations happen ..... A) Seldom. B) Rapidly. C) Slowly. D) Only during fission. Show Answer Correct Answer: B) Rapidly. 4. Which Kingdom is this? -Eukaryotic .-Autotrophic or Heterotrophic-Unicellular or Multicellular-Motile (able to move) A) Animalia. B) Protista. C) Fungi. D) Plantae. Show Answer Correct Answer: B) Protista. 5. If you wanted to develop antiviral drugs what would you study about a virus? A) Protein capsid used by the virus. B) Mechanism of how the virus infects the host. C) DNA sequence of the virus. D) The host cell which it infects. Show Answer Correct Answer: B) Mechanism of how the virus infects the host. 6. A(n) ..... is a virus that enters a bacterial cell. A) Endospore. B) Decomposer. C) Plasmid. D) Bacteriophage. Show Answer Correct Answer: D) Bacteriophage. 7. Which best describes the basic structure of a virus? A) Nucleic acid strand surrounded by a protein coat. B) A tail surrounded by a protein coat. C) A tail surrounded by a carbohydrate coat. D) Nucleic acid strand surrounded by a carbohydrate coat. Show Answer Correct Answer: A) Nucleic acid strand surrounded by a protein coat. 8. Process by which bacteria reproduce asexually A) Binary fission. B) Transduction. C) Transformation. D) Conjugation. Show Answer Correct Answer: A) Binary fission. 9. Why is it necessary to have the flu shot every year? A) A person's antibodies level never declines after receiving the vaccine. B) People only have passive immunity to the flu for one year. C) The flu virus evolves quickly. D) The flu virus remains unchanged from year to year. Show Answer Correct Answer: C) The flu virus evolves quickly. 10. Which of the following is a true statement about viruses? A) They are only spread through person-to-person contact. B) They can be spread in a number of different ways. C) All of them are harmful to humans. D) They can only be spread through exposure to animal waste. Show Answer Correct Answer: B) They can be spread in a number of different ways. 11. What term refers to a type of respiration that requires oxygen? A) Fermentation. B) Hostile. C) Aerobic. D) Anaerobic. Show Answer Correct Answer: C) Aerobic. 12. A type of spore formed when a bacterium produces a thick internal wall that encloses its DNA and a portion of its cytoplasm A) Conjugation. B) Prokaryote. C) Facultative anaerobe. D) Endospore. Show Answer Correct Answer: D) Endospore. 13. Coccus shaped bacteria are A) Rod-shaped. B) Spherical. C) Spiral. D) None of above. Show Answer Correct Answer: B) Spherical. 14. Bacteria that obtain energy by taking in organic molecules for both energy and a source of carbon to obtain energy are called ..... A) Photoheterotrophs. B) Chemoheterophs. C) Chemotrophic autotrophs. D) Phototrophic autotrophs. Show Answer Correct Answer: B) Chemoheterophs. 15. Bacteria that needs oxygen to survive is said to be A) Aerobic. B) Photosynthetic. C) Decomposing. D) Consuming. Show Answer Correct Answer: A) Aerobic. 16. Unicellular (one-celled), prokaryotic organisms that can cause disease. There are 3 main shapes:Spirilla (spiral shaped), Baccilus (rod-shaped), and Cocci (round/sphere-shaped). A) Vaccine. B) Virus. C) Host. D) Bacteria. Show Answer Correct Answer: D) Bacteria. 17. What is genetic material? A) The protective outer part of a virus. B) Contains the instructions for making new viruses. C) An organism that nourishes a and supports a parasite. D) None of above. Show Answer Correct Answer: B) Contains the instructions for making new viruses. 18. What does a virus need in order to survive? A) Watery environment. B) A host cell. C) Energy from the sun. D) To be able to move from cell to cell. Show Answer Correct Answer: B) A host cell. 19. The Dead Sea is a large salt lake bording Jordan and Israel. It has a salt concentration of 34.2%, which is too hypertonic for most life. What life might still survive and thrive there? A) Halophiles. B) Thermophiles. C) Heterotrophs. D) Cyanobacteria. Show Answer Correct Answer: A) Halophiles. 20. What is a virus? A) It is a type of cell similar to an animal or plant cell. B) A tiny microscopic particle that can infect living cells. C) A prokaryote. D) An eukaryote. Show Answer Correct Answer: B) A tiny microscopic particle that can infect living cells. ← PreviousNext →Related 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 9Virus And Bacteria Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books