Worksheet: Virus Life Cycles

In this worksheet, we will practice describing the lytic and lysogenic lifecycle of a virus.

Q1:

Which of the following is not a disease caused by a virus?

  • AThe common cold
  • BMeasles
  • CHIV
  • DGonorrhea
  • EInfluenza

Q2:

Which of the following statements about viruses is correct?

  • AViruses are unable to replicate.
  • BViruses do not contain genetic material like other prokaryotes.
  • CViruses contain a membrane-bound nucleus that holds their genetic material.
  • DVirus cells can be destroyed by taking antibiotics.
  • EViruses are unable to replicate outside of a living cell.

Q3:

Some viruses are disease-causing microorganisms. What group do they belong to?

  • AProkaryotes
  • BEukaryotes
  • CProtozoa
  • DPathogens
  • EBacteria

Q4:

Why do many scientists consider viruses to be nonliving?

  • ABecause they do not contain any DNA
  • BBecause they are microorganisms
  • CBecause they do not have a heartbeat
  • DBecause they cannot reproduce on their own

Q5:

What do viruses require to reproduce?

  • AA warm environment
  • BA virus of the opposite sex
  • CA living host cell
  • DAnother virus
  • EA dead host cell

Q6:

In both the lysogenic and lytic life cycles of a virus, what does a virus inject into the host cell?

  • AGenetic material
  • BToxins
  • CCytoplasm
  • DEnzymes
  • ESubcellular organelles

Q7:

The diagram provided shows one of the life cycles of a virus, occurring in a bacterial cell.

What specific life cycle is being demonstrated here?

  • ALysogenic
  • BLytic

In stage 1, the virus is injecting its material into the bacteria.

  • Acytoplasmic
  • Benzymatic
  • Cgenetic
  • Dcellular

In stage 3, the virus’s material has been used to create viruses.

  • Aenzymatic, new
  • Bcellular, many
  • Ccytoplasmic, many
  • Dgenetic, new

In the final stage of the lytic cycle, the cell and the viruses.

  • Areforms, replicates
  • Bbursts, destroys
  • Cbursts, releases
  • Dreplicates, doubles

Q8:

The diagram provided shows one of the life cycles of a virus, occurring in a bacterial cell.

What specific life cycle is being demonstrated here?

  • ALytic
  • BLysogenic

Which of the following best explains what is happening in step 1?

  • AMultiple copies of the virus are being produced.
  • BThe virus is injecting its genetic material into the bacterial cell.
  • CThe virus is replicating within the bacterial cell.
  • DThe virus’s genetic material has combined with the bacteria’s genetic material.

Which of the following best explains what is happening in step 3?

  • AThe virus’s genetic material has combined with the bacteria’s genetic material.
  • BThe virus is injecting its genetic material into the bacterial cell.
  • CMultiple copies of the virus are being produced.
  • DThe virus is replicating within the bacterial cell.

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