11.6 Viruses

Viruses are surrounded by a protein coat known as a

• Capsid

• Capsule

• Enzyme

• Nucleotide

Viruses are microscopic infectious agents that can only replicate inside a host cell

• FALSE

• TRUE

Viruses contain genetic material either DNA or RNA

• FALSE

• TRUE

Bacteriophage is a form of bacteria

• FALSE

• TRUE

Why do scientists classify viruses as non-living?

• They DO respond to a stimulus
• They need a host's energy because they do not have their own energy 
• They produce wastes
• They are really small 

What is the first step of the virus reproduction cycle?

• The viruses genetic material (DNA) starts to take over the functions of the cell
• The host cell bursts open, releasing the new viruses
• The virus injects its genetic material into the cell
• A virus attaches to the surface of a host cell

What is the last step in the viral reproduction cycle?

• A virus attaches to the surface of a host cell
• The proteins and genetic material start to assemble in the cell
• The host cell bursts open, releasing the new viruses
• The virus injects its genetic material into the cell

Which is bigger, a bacteria or a virus?

• Bacteria
• Virus

Most bacteria are surrounded by a strong structure that acts like a shield for the virus called the…?

• Cell Wall
• Cell Membrane
• Protein Coat

Which of the following helps prevent the spread of infectious diseases?

• Surgery
• Medication
• Vaccines