Viruses
Biology ⇒ Microorganisms and Microbiology
Viruses starts at 7 and continues till grade 12.
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See sample questions for grade 11
A patient is diagnosed with a viral infection. The doctor prescribes an antiviral drug that inhibits viral entry into host cells. What stage of the viral life cycle is being targeted?
A student observes that a certain virus can infect both humans and birds. What does this suggest about the virus's host range?
Describe how vaccines work to protect against viral infections.
Describe one way in which viruses are different from bacteria.
Describe the main steps in the lytic cycle of a bacteriophage.
Describe the role of reverse transcriptase in the life cycle of a retrovirus.
A patient is diagnosed with a viral infection. The doctor prescribes an antiviral drug that inhibits viral entry into host cells. What stage of the viral life cycle is being targeted?
A student observes that a certain virus can infect both humans and birds. What does this suggest about the virus's host range?
Which of the following best describes a virus? (1) A living cell (2) A non-living particle (3) A prokaryotic organism (4) A eukaryotic organism
Which of the following components is NOT found in all viruses? (1) Nucleic acid (2) Capsid (3) Envelope (4) Genetic material
Which of the following is a characteristic of all viruses? (1) Ability to reproduce independently (2) Presence of a cell wall (3) Presence of genetic material (4) Ability to photosynthesize
Which of the following is a function of viral surface proteins? (1) Energy production (2) Attachment to host cells (3) Protein synthesis (4) DNA replication
Fill in the blank: HIV is an example of a ________ virus.
Fill in the blank: The enzyme used by some viruses to copy their RNA into DNA is called ________.
Fill in the blank: The first virus to be discovered was the ________ mosaic virus.
Fill in the blank: The genetic material of a virus can be either ________ or ________, but not both.
True or False: All viruses contain both DNA and RNA as their genetic material.
True or False: All viruses have an envelope surrounding their capsid.
True or False: Antibiotics are effective against viral infections.
True or False: Prions and viroids are types of viruses.
