Microbiology Chapter 13 Questions and Grade A solutions 2024

Microbiology chapter 13 Which statement is INCORRECT concerning animal viruses? a) Enveloped viruses are surrounded by a lipid and carbohydrate coat, which is made from the host cell's plasma membrane. b) Capsid proteins are produced in the cytoplasm. c) Retroviruses use an enzyme called reverse transcriptase, which synthesizes DNA using RNA as a template. d) The genome of animal viruses is always single-stranded. ANSWER: d A feature that may be found in viruses but never in bacteria is a) an ability to infect more than one type of host. b) the ability to pass through 0.22 micrometer pore filters. c) they cannot reproduce themselves outside a host. d) a sensitivity to antibiotics. e) may contain an RNA genome. ANSWER: e Why do most scientists agree that viruses are nonliving entities? a) They are not composed of cells. b) They cannot replicate outside host cells. c) They pass through filters.