Viruses Quiz - Basic Concepts
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Viruses Quiz - Basic Concepts
Take a closer look at the tiny invaders all around us—viruses! Learn what they’re made of, how they enter human cells, and how they use our cells to reproduce. Discover what makes viruses different from other pathogens and how vaccines and antiviral drugs help fight them.
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此测验中的问题
What is the basic structure of a virus?
- DNA or RNA and a protein coat
- Only DNA
- Only RNA
- Lipids and carbohydrates
Which of these is not a component of a virus?
- Nucleic acid
- Enzymes
- Capsid
- Mitochondria
What is the protein coat surrounding the genetic material of a virus called?
- Capsid
- Envelope
- Membrane
- Shell
How do viruses typically enter a human cell?
- Osmosis
- Endocytosis
- Active transport
- Filtration
What specific part of the host cell do viruses hijack for replication?
- Chloroplasts
- Nucleus
- Ribosomes
- Endoplasmic reticulum
Which of the following is NOT a type of viral structure?
- Helical
- Icosahedral
- Pentagonal
- Complex
What is the function of the viral envelope?
- It provides structural support
- It helps in attachment to host cells
- It stores genetic material
- It produces ATP
How do viruses differ from bacteria in terms of their living characteristics?
- Viruses are larger
- Viruses require a host to replicate
- Viruses are considered fully living organisms
- Viruses can undergo metabolism independently
What can vaccines typically trigger in the body to fight against viruses?
- Production of antibodies
- Increased blood pressure
- Decrease in white blood cells
- Production of alcohol
In what way do antiviral drugs usually work to fight viruses?
- They strengthen the cell walls
- They inhibit replication of the virus
- They increase white blood cell count
- They enhance photosynthesis
What is the process called when a virus leaves a host cell, often destroying it?
- Endocytosis
- Mitosis
- Lysis
- Exocytosis
Viruses Quiz - Basic Concepts
