OpenStax Microbiology Test Bank Chapter 6: Acellular Pathogens

OpenStax Microbiology Test Bank Chapter 6: Acellular Pathogens * = Correct answer Multiple Choice 1. Which of the following is not a property of a virus? A. It is an infectious cellular pathogen.* B. It is an obligate intracellular pathogen. C. Its genome consists of DNA or RNA. D. Its genome is surrounded by a protein capsid. Difficulty: Easy ASM Standard: 10, 13 2. Which of the following is the scientist responsible for first discovering viruses (specifically, tobacco mosaic virus)? A. Dimitri Ivanovski* B. Edward Jenner C. Henrietta Lacks D. Stanley Prusiner Difficulty: Easy ASM Standard: N/A 3. The protein subunits that surround the nucleic acid of a virus are known as which of the following? A. amino acids B. capsomeres* C. chromatins D. telomeres Difficulty: Easy ASM Standard: N/A 4. Arthropods typically serve as which mechanism of transmission for viruses? A. biological vector* B. fomite C. mechanical vector D. both as fomites and as vectors Difficulty: Medium ASM Standard: 10, 13, 23 5. Which unit of length best describes the average size of a virion? A. mm B. μm C. nm* D. pm Difficulty: Easy ASM Standard: 6 6. Viruses can be visualized using which method? A. compound light microscope B. electron microscope* C. the naked eye D. ultraviolet rays Difficulty: Easy ASM Standard: 6, 32, 36 7. The Baltimore Classification system describes viruses according to which characteristic? A. capsid shape B. host-cell susceptibility C. the presence or absence of an envelope D. the viral genome* Difficulty: Easy ASM Standard: 10 8. Which of the following properly lists (in order) the steps of viral replication? A. Attachment Lysis Penetration Biosynthesis Maturation B. Attachment Penetration Biosynthesis Maturation Lysis * C. Biosynthesis Attachment Penetration Lysis Maturation D. Penetration Biosynthesis Lysis Attachment Maturation