Test Bank for Microbiology, 5th Edition, Joan L Slonczewski, John W Foster, Erik R Zinser

chapter 1 1. Viruses are a. infectious agents that infect exclusively multicellular organisms. b. noncellular particles that take over the metabolism of a cell to generate more virus particles. c. pathogens that replicate in complex growth media. d. cellular particles that belong to the archaea domain. e. microbes that consist of lipid membrane–enclosed genomes. 2. The analysis of DNA sequences reveals a. the ancient convergence of prokaryotes and eukaryotes. b. that prokaryotes and eukaryotes evolved from a common ancestral cell. c. that bacteria share a common ancestor with archaea but not with eukarya. d. that prokaryotes are cells with a nucleus. e. that the genome of Haemophilus influenzae has about 2 billion base pairs. 3. Which of these groups are considered to be microbes, but NOT considered to be cells? a. viruses b. bacteria c. archaea