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Nura 221 Exam 2 - Antivirals/ Hematology Questions & 100% Correct Answers $12.49   Add to cart

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Nura 221 Exam 2 - Antivirals/ Hematology Questions & 100% Correct Answers

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  • Course
  • NURA 221
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  • NURA 221

Characteristics of Viruses ~~> •Nonliving agents that infect bacteria, plants, animals • •Do not contain •cellular organelles •DNA or RNA (have one or the other) • •Can be classified as intracellular parasites •Must be in host cell to replicate and cause infection •M...

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  • September 12, 2024
  • 27
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NURA 221
  • NURA 221
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1 | P a g e | © copyright 2024/2025 | Grade A+




Nura 221 Exam 2 - Antivirals/ Hematology
Questions & 100% Correct Answers
Characteristics of Viruses

✓ ~~> •Nonliving agents that infect bacteria, plants, animals



•Do not contain

•cellular organelles

•DNA or RNA (have one or the other)



•Can be classified as intracellular parasites

•Must be in host cell to replicate and cause infection

•Many viruses infect specific host cell



•They do have their own enzymes which can be targeted with medications




What does DNA and RNA do?

✓ ~~> store and transmit genetic information




DNA: blueprint




Master01 | September, 2024/2025 | Latest update

, 2 | P a g e | © copyright 2024/2025 | Grade A+



RNA: decodes DNA and relays instructions to cell




What is best treatment for viruses?

✓ ~~> Prevention




Are viruses living?

✓ ~~> No - they are non-cellular structures




Need a host cell to replicate




Why do most viruses require no pharmacotherapy?

✓ ~~> Because they are self-limiting' (time is limited, will die on their

own)




like rhinovirus




Which viruses require aggressive therapy?

✓ ~~> Those that can cause serious disease and are life-threatening.




like HIV and Herpes (always in you)




Master01 | September, 2024/2025 | Latest update

, 3 | P a g e | © copyright 2024/2025 | Grade A+




Challenges of Antiviral Therapy

✓ ~~> Viruses mutate rapidly, and drug becomes ineffective

Difficult for drug to find virus without injuring normal cells

Each antiviral drug specific to one particular virus




•Antiviral drugs are clinically difficult to make and are very expensive




Broad spectrum vs Narrow spectrum

✓ ~~> Broad: effective against many species




Narrow: one restricted group of microorganisms




virus are known for

✓ ~~> mutations.. always changing. Can adapt




chicken pox (varicella)

✓ ~~> airborne and contact (family of DNA viruses)




herpes family



Master01 | September, 2024/2025 | Latest update

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