Bio - Unit 4 Exam (Viruses)

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

A virus can be classified by its type of

• mitochondria
• chromosomes
• nucleic acid
• carbohydrates

What part of the phage is the DNA?

• A
• B
• C
• D

Antibiotics kill viruses

• True
• False

True or False
The flu is caused by a virus.

• true
• false

A(n) _____ is a virus that enters a bacterial cell.

• endospore
• decomposer
• plasmid
• bacteriophage

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