Portage Microbiology Exam #6 Questions and Answers.

Portage Microbiology Exam #6 Questions and Answers
Question 1
True or False: Because the genome is contained within an enclosed space, (much like the nucleus of a cell) viruses are
classified as eukaryotic
Correct Answer
False. Viruses are neither eukaryotic nor prokaryotic



Question 2
Describe the two basic components of a virus (short answer)
Correct Answer
A virus has 1. genomic material comprised of either DNA or RNA and 2. a capsid, a membrane-like protective structure
that contains the genetic material, similar to the nucleus of a eukaryotic cell



Question 3
The _____ surrounds the capsid of some viruses
Correct Answer
Envelope




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, Question 4
The envelope surrounds the _____ of some viruses
Correct Answer
Capsid



Question 5
True or False: You would expect to see a viral envelope on a virus infecting a plant cell
Correct Answer
False. The overwhelming majority of animal viruses are enveloped whereas the majority of plant or bacteria-infecting
viruses are not



Question 6
True or False: You would expect to see a viral envelope on a virus infecting a bacterial cell
Correct Answer
False: Not all the viruses have envelopes



Question 7
Rank the following viruses based on their size from largest to smallest: orthomyxovirus, poliovirus, variolavirus
Correct Answer
Variolavirus>Orthomyxovirus>Poliovirus




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