AP Bio Chp 19 Virus

Reasons that viruses are considered to be nonliving is because

• They are not cellular
• They cannot reproduce on their own
• They cannot make proteins
• all of the above

What do viruses need to reproduce?

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

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 provides direct energy for the virus?

• food
• its host
• the sun
• a parasite

Antibiotics kill viruses

• True
• False

Viruses are cells. 

• True 
• False

Which of the following occurs after a virus attaches to a host cell in the viral reproduction process?

• The host cell dies
• The virus dies
• The virus inserts its genetic information into the host cell
• copies of the virus are immediately released from the host

How could you describe the size of a virus?

• Smaller than bacteria
• Larger than a parasite
• About the size of a dime
• Smaller than a proton

Communicable diseases are

• not contagious
• conditions that people are born with
• passed from one person to another
• caused through hereditary factors