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- 1. Multiple Choice
A virus consists of:
RNA or DNA and a cell membrane
RNA or DNA and a protein coat
RNA and DNA and a protein coat
proteins, cell membrane, and RNA
- 2. Multiple Choice
What happens after the virus has been taken up by the cell?
it begins making protein
it divides, or replicates
it inserts into the host DNA
it switches to infectious mode
- 3. Multiple Choice
What is the outside protective coating of a virus made of?
lipids
carbohydrates
protein
carbon
- 4. Multiple Choice
What reason do scientists give for saying that viruses are not living organisms?
they cannot reproduce without the aid of a host
they do not metabolize food into energy
they do not have organized cells
all of the above
none of the above
- 5. Multiple Choice
True or False: Most viruses are so small that they can't be seen with with the unaided eye (basically saying we can't see them unless we have a microscope)
True
False
- 6. Multiple Choice
What happens in the lytic cycle?
the spacecraft shaped virus attaches to the host cell then leaves
the spacecraft virus kills the host cell
the spacecraft shaped virus attaches to the host cells and as it leaves it kills the host cell
the spacecraft virus attaches to the host cell injects DNA as the virus leaves it kills the host cell
- 7. Multiple Choice
What happens in the lysogenic cycle?
A virus injects DNA into a host cell
Bacteria injects genetic material into a host cell
Bacteria injects DNA into a host cell
A virus injects its genetic material into a host cell
- 8. Multiple Choice
Why do viruses need a host cell?
because they aren't living
because they need to reproduce
because they can't live without a host cell
- 9. Multiple Choice
What does the lytic cycle result in?
destruction of the infected cell and the membrane
multiple new cells
people going in sane
- 10. Multiple Choice
What is the outside, protein coat on a virus called?
genetic material
capsid
envelope
tail fibers
- 11. Multiple Choice
Viral DNA that is incorporated into a host cell's chromosome is called a
provirus
plasmid
party animal
prophage
- 12. Multiple Choice
What does the term 'obligate intracellular parasite' mean?
does not need a host to survive
needs a host to survive
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