Viruses and Bacteria

Viruses are considered:

• Living

• Nonliving

• Semi-living

• Zombie Cells

What type of infection results in viruses taking control of the cell quickly and destroying the cell quickly?

• Bacterial Infection

• Lysogenic Infection

• Lytic Infection

• Viral Infection

How does a virus cause a person to develop the common cold?

• invades the host cell to reproduce
• removes energy from the host cell
• produces toxins in the host cell
• protects the host cell from bacteria

When a virus invades a living cell, its _______
takes over the cell's functions.

• outer coat
• genetic material
• core
• cytoplasm

What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)?

• tail
• nucleus
• capsid
• glycoprotein

Which type of replication allows viral genetic material to lay dormant while the host cell reproduces?

• active (lytic)
• mitosis
• hidden (lysogenic)
• cellular respiration

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

Which of these is a plant virus?

• tobacco mosaic virus
• bacteriophage
• influenza
• polio

Viruses can reproduce on their own

• False
• True
• Sometimes

What is the main function of the projections on the surface of a virus?

• They aid in respiration
• They help the virus grow
• They help the virus invade its host by attaching to specific sites on the host
• They help the virus digest food molecules