Understanding Viruses

Which of the following is NOT considered a pathogen?

• Bacteria

• Viruses

• Vitamins

• Fungi

What is the primary reason viruses are not considered alive?

• They do not have cells

• They are too small

• They are made of proteins

• They can infect humans

How do viruses replicate if they cannot reproduce on their own?

• By merging with other viruses

• By consuming nutrients

• By dividing like bacteria

• By using host cells to create more viruses

What is a zoonotic virus?

• A virus that infects only plants

• A virus that only affects bacteria

• A virus that can infect both animals and humans

• A virus that is harmless to humans

Which part of the virus is responsible for protecting its genetic material?

• Cell wall

• Genome

• Envelope

• Capsid

What is the function of the viral envelope?

• To replicate the virus

• To produce energy

• To help the virus attach to host cells

• To store nutrients

Which of the following is a characteristic of a helical virus structure?

• It has a hollow center

• It is flat and circular

• It is shaped like a cube

• It has no genetic material

What is the role of capsomeres in a virus?

• To replicate the virus

• To infect host cells

• To form the protein coat

• To provide energy

Which type of nucleic acid can be found in viruses?

• Neither DNA nor RNA

• Only DNA

• Only RNA

• Both DNA and RNA

What is the significance of the viral genome?

• It protects the virus from the immune system

• It provides energy for the virus

• It contains the instructions for making viral proteins

• It allows the virus to move