Bacteria and Viruses Test

Last Name, First Name

Which of the following is true of both viruses and bacteria?

• Bacteria and viruses are living organisms that can infect humans and animals and cause harm.
• Bacteria and viruses need water and food to grow and reproduce.
• Bacteria and viruses have unique organelles responsible for replicating genetic information.
• Bacteria and viruses can adapt to their environments to ensure their survival.

Ebola, Zika, and Rabies are all examples of...

• Gram-positive bacteria
• viruses
• harmful bacteria
• bacteriophages

Bacteria that make their own food through photosynthesis or chemosynthesis are known as...

• extremophiles
• heterotrophs
• autotrophs
• thermophiles

Which cycle is shown in the picture?

• Lysogenic cycle
• Bacteriophage cycle
• Lytic cycle
• Krebs cycle

Look at the diagram . What is Letter B pointing to?

• pili
• ribosome
• flagella
• capsomere

Look at the diagram. What is Letter D pointing to?

• pili
• ribosome
• nucleoid
• capsid

Specialized viruses that infect bacteria are known as...

• polyhedral viruses
• Gram-positive
• bacteriophages
• archaea

Look at the diagram. What is Letter A pointing to?

• nucleoid
• pili
• flagella
• capsule

Which of the following statements is TRUE?

• Viruses are living organisms that use a host cell to replicate their genetic information.
• Viruses contain complex organelles used for acquiring nutrients and replication.
• Viruses can infect plants, animals, bacteria, and other viruses.
• Viruses can only spread by touching an infected person.