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Questions and Answers
What is the primary function of spike proteins on the SARS-CoV-2 virus?
What is the primary function of spike proteins on the SARS-CoV-2 virus?
- They help the virus replicate within host cells.
- They assist the virus in attaching to and entering cells. (correct)
- They are responsible for causing symptoms in infected individuals.
- They provide protection from the immune system.
Which virus is specifically mentioned as having caused an estimated one million deaths between 1968 and 1969?
Which virus is specifically mentioned as having caused an estimated one million deaths between 1968 and 1969?
- Influenza A
- SARS-CoV-2
- H3N2 (correct)
- Covid-19
What distinguishes SARS-CoV-2 from other common viruses like flu and cold viruses?
What distinguishes SARS-CoV-2 from other common viruses like flu and cold viruses?
- It primarily infects plant cells.
- It emerged in 2019 and is associated with Covid-19. (correct)
- It has been completely eradicated.
- It has no symptoms associated with infection.
Which of the following statements accurately describes the response to viral infections?
Which of the following statements accurately describes the response to viral infections?
Why is there a debate among scientists about classifying viruses as living organisms?
Why is there a debate among scientists about classifying viruses as living organisms?
Flashcards
Viruses
Viruses
Tiny infectious agents that require host cells to replicate.
SARS-CoV-2
SARS-CoV-2
The virus responsible for Covid-19, emerged in 2019.
Spike Proteins
Spike Proteins
Structures on the virus surface that help attach to host cells.
Symptoms of Viral Infections
Symptoms of Viral Infections
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Virus Classification Debate
Virus Classification Debate
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Study Notes
Viruses and Life
- Viruses are infectious agents
- Some scientists consider viruses living organisms while others do not
- Viruses cause illness such as influenza (flu), Covid-19 (SARS-CoV-2)
- A new virus emerged in 2019 called SARS-CoV-2
- This virus has symptoms ranging from mild to deadly
- Scientists study to find effective treatment and prevention methods such as vaccines and drugs
- Viruses infect specific cells (animal or plant)
- In 1968-1969 H3N2 influenza killed about 1 million
- There are thousands of different types of viruses
- Viruses are very small, about 100,000 times smaller than cells
- Viruses attach to cell surfaces to infect and replicate.
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