BIOD 171 MODULE 6 FINAL EXAM QUESTIONS AND ANSWERS GRADED 100%, Exams of Nursing

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BIOD 171 MODULE 6 TEST QUESTIONS AND

DETAILED ANSWERS 2025

A drug company is trying to develop a new drug that will inhibit the release of newly produced viral particles. Would the drug company target hemagglutinin proteins or neuraminidase proteins? Why? - CORRECT ANSWER Neuraminidase proteins are directly involved in the budding and release of new viral particles and would be the correct target. Hemagglutinin proteins would not be advisable targets bc they are directly involved in viral attachment and entry into the host cell. A drug company is trying to develop a new drug that will inhibit viral entry of Influenza. Would the drug company target hemagglutinin proteins or neuraminidase proteins? Why? - CORRECT ANSWER Hemagglutinin proteins would be targets because they are directly involved in viral attachment and entry into the host cell. Neuraminidase proteins are involved in the budding and release of new viral particles so they wouldn't be the right target. A patient diagnosed with German measles may additionally experience what disease? Select all that apply.

• Impetigo
• Conjunctivitis
• Rheumatic fever
• Infleunza-like symptoms - CORRECT ANSWER - Conjunctivitis
• Influenza-like symptoms A person who has neither previously had chickenpox nor been administered the VZV vaccine is exposed to someone with an active VZV (shingles) outbreak and becomes infected. Explain why (or why not) the person will only develop shingles. - CORRECT ANSWER The person won't develop shingles, but will develop chickenpox. Unvaccinated and

Describe the two basic components of a virus. - CORRECT ANSWER A virus has genomic material made up of either DNA or RNA and a capsid which is a protective structure that contains genetic material Explain why the flu shot given each year may not be 100% effective at preventing the flu? - CORRECT ANSWER The flu shot is based upon the latest flu strains that circulate each year. You could come in contact with a viral strain that was not included in the flu vaccine that you received. Identify the following components of a bacteriophage. 1 - [CORRECT ANSWER er1] 2 - [CORRECT ANSWER er2] 3 - [CORRECT ANSWER er3] 4 - [CORRECT ANSWER er4] 5 - [CORRECT ANSWER er5] - CORRECT ANSWER 1. capsid

2. collar
3. tail
4. base plate
5. tail fibers Place the following viral life cycle steps in order beginning with viral attachment and provide a description of each step.

Uncoating: Release: Replication: Attachment: Entry: New infection: - CORRECT ANSWER 3 - Uncoating: the viral capsid disassembles 5 - Release: New virus particles are produced and leave the cell 4 - Replication: the viral genome is the 'blueprint' to make copies of itself 1 - Attachment: viral receptors bind to host proteins on the surface of the cell 2 - Entry: the virus fuses with the host membrane and enters the cell 6 - New infection: newly produced viruses that left the host cell now go on to infect new cells. Rank the following viruses based on their size from largest to smallest: Orthomyxovirus Poliovirus Variolavirus - CORRECT ANSWER Variolavirus Orthomyxovirus Poliovirus Rank the following viruses based on their size from largest to smallest: Paramyxovirus Poliovirus

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 True or False. Similar to chickenpox, the blisters that appear with shingles can cover the entire body. - CORRECT ANSWER False True or False. Structurally, bacteriophages are similar to viruses that infect animals. - CORRECT ANSWER False True or False. The development of shingles is most often seen in an older adult population (> 60 years old). - CORRECT ANSWER True True or False. The viral capsid of HIV is cone shaped and contains ~2,000 copies of the viral protein p24. - CORRECT ANSWER True True or False. The viral capsid of HIV is dumbbell shaped and contains ~2,000 copies of the viral protein p24. - CORRECT ANSWER False True or False. Unlike chickenpox, the blisters that appear with shingles are localized and limited to small areas. - CORRECT ANSWER True True or False. You would expect to see a viral envelope on a virus infecting a bacterial cell. - CORRECT ANSWER False The overwhelming majority of animal viruses are enveloped whereas the majority of plant or bacteria-infecting viruses are not. What disease is best characterized by painful swelling of the paratoid? - CORRECT ANSWER Mumps

What small (~30nm) single-stranded, non-enveloped RNA virus targets the CNS (central nervous system), causing potentially catastrophic damage to motor neurons? ALTERNATE WORDING: What small (~30nm) single-stranded, non-enveloped RNA virus causes temporary or permanent paralysis by infiltrating (infecting) motor neurons within the spinal cord, brain stem, or motor cortex? - CORRECT ANSWER Polio Which of the following can be spread via airborne particles: Measles Mumps Rubella A and B All the above - CORRECT ANSWER All the above Which of the following diseases does a linear, single-stranded RNA virus cause? Measles Mumps Rubella B and C All the Above - CORRECT ANSWER All the above