Viruses
Biology ⇒ Microorganisms and Microbiology
Viruses starts at 7 and continues till grade 12.
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See sample questions for grade 9
A person receives a flu vaccine and does not get sick when exposed to the flu virus. What does this demonstrate about vaccines?
A student observes that a virus cannot grow on a nutrient agar plate by itself. What does this suggest about viruses?
Describe how vaccines help protect against viral infections.
Describe one way in which viruses differ from bacteria.
Describe the main difference between the lytic and lysogenic cycles of viral replication.
Describe the role of reverse transcriptase in retroviruses.
A person receives a flu vaccine and does not get sick when exposed to the flu virus. What does this demonstrate about vaccines?
A student observes that a virus cannot grow on a nutrient agar plate by itself. What does this suggest about viruses?
Which of the following best describes a virus? (1) A living cell (2) A non-living particle (3) A type of bacteria (4) A plant cell
Which of the following best explains why viruses are not classified as living organisms? (1) They have DNA or RNA (2) They can reproduce independently (3) They do not carry out metabolic processes (4) They have a protein coat
Which of the following diseases is NOT caused by a virus? (1) Influenza (2) Tuberculosis (3) Measles (4) HIV/AIDS
Which of the following is a characteristic of all viruses? (1) They have a cell wall (2) They contain genetic material (3) They can make their own food (4) They have ribosomes
Fill in the blank: The outermost layer of some viruses, derived from the host cell membrane, is called the ______.
Fill in the blank: The process by which a virus becomes part of the host cell's DNA and remains inactive for a period is called the ______ cycle.
Fill in the blank: The process by which a virus injects its genetic material into a host cell is called ______.
Fill in the blank: The protein coat of a virus is made up of subunits called ______.
The lytic cycle is a process by which viruses reproduce. True or False?
Viruses are considered living organisms. Yes or No?
Viruses are smaller than most bacteria. True or False?
Viruses can be crystallized and stored for years without losing their ability to infect. True or False?
