Viruses and Replication

VIRUS REPLICATION

Definition

Viruses cannot replicate on their own, but rather depend on their host cell's protein synthesis pathways to reproduce. This typically occurs by the virus inserting its genetic material in host cells, co-opting the proteins to create viral replicates, until the cell bursts from the high volume of new viral particles.

Process

A. Lytic Viral Replication

https://www.youtube.com/watch?v=GzNay9XRYRs

B. Lysogenic Viral Replication

https://www.youtube.com/watch?v=hFwA0aBX5bE

The difference

The video is here:

https://www.youtube.com/watch?v=hFwA0aBX5bE

Quiz Time

Multiple Choice

Which viral cycle takes the longest to show symptoms?

• Lysogenic

• Lytic

Multiple Choice

The two components of a virus are nucleic acid and __________.

• protein

• carbohydrates

• lipids

• glucose

Multiple Choice

Segments of nucleic acids contained in a protein coat are called_________.

• pathogens

• capsids

• viruses

• lytic cycles

Multiple Choice

Microorganisms or infectious agents that cause disease are called __________.

• pathogens
• capsids
• viruses
• proviruses

Multiple Choice

The protein coat that surrounds either RNA or DNA is called a ___________.

• pathogen
• capsid
• virus
• provirus

Multiple Choice

The ______________ is the cycle of viral infection, replication, and cell destruction. 

• pathogenic cycle
• lytic cycle
• lysogenic cycle
• viral cycle

Multiple Choice

Microscopic, nucleic acid-containing particles that invade cells of organisms in order to reproduce, and often destroy the cells in the process, are called _______________.

• pathogens
• capsids
• viruses
• proviruses

Multiple Choice

The viral genetic material replicates without destroying the host cell during the ________.

• pathogenic cycle
• lytic cycle
• lysogenic cycle
• viral cycle

Multiple Choice

Viral genetic material that has infected a host cell and is replicated is called a ________.

• pathogen

• capsid

• virus

• provirus

That's for today

See ya!