virus %19 Flashcards
(20 cards)
Why do some people believe that viruses are living?
Because they can reproduce within host cells.
The genetic material of a virus is contained in a protein coat called what?
Capsid.
A virus that is pathogenic to bacteria is called what?
Bacteriophage.
What is a viral replication cycle in which the virus remains dormant for several generations called?
- Lysogenic cycle.
Why do some people believe that viruses are living?
Because they can reproduce within host cells.
What can viruses contain as genetic material?
DNA or RNA.
How can viral diseases be prevented?
Through vaccination.
What is the viral replication cycle that causes the rupture of the host cell called?
- Lytic cycle.
Which of the following is not a viral disease: influenza, chicken pox, strep throat, rabies?
Strep throat.
- What type of virus has RNA for its genetic material?
retrovirus
RNA virus
- What kingdom of bacteria lives in harsh environments?
Archaebacteria
What kingdom of bacteria is the most plentiful?
Eubacteria.
The _ bacteria absorb crystal violet and appear purple.
Gram-positive.
What type of bacteria can only grow in the presence of oxygen called?
Aerobes.
What type of cells do bacteria have because they lack a nucleus?
Prokaryotic cells.
What are organisms that make their own food called?
Autotrophs.
What are chemicals used to treat bacterial infections called?
Antibiotics
What are bacteria or viruses that cause disease called?
Pathogens.
What type of bacteria can survive either with or without oxygen?
Facultative anaerobes.
What are round-shaped bacteria called?
Cocci.
