Lytic Cycle

What is the lytic cycle and how long does it take?

What is the lytic cycle?

The Lyctic cycle is a process (cycle) that can occur to any bacterial cell, in which a virus takes over a bacterial cell, causing the host to reproduce. This eventually bursts the cell, and eventually kills the bacteria cell.

Stages of the lytic cycle

This image represents the stages that occur in the host organism coming into the cell, and then reproducing massively until it eventually kills the cell.

Five Stages (phases) of the Lytic cycle

1.Attachment~Phage attaches to host cell and injects its DNA

2.Entry~It enters the cell and early stage phage proteins are produced, including several enzymes which break down the host DNA.

3.Replication~ Phage DNA is replicated

4.Assembly~ Late-stage proteins are produced, including lysozyme. The lysozyme disrupts the host cell membrane and cell wall, causing lysis (cell death)

5.Lysis and Release~ Hundreds of progeny phase are released.

How long does the Lytic Cycle take to complete?

It varies for the length of time in different cells, and it is known that it is not instantaneous. on average, the cycle can take anywhere from 18 hours to 3 days to complete.

How does this happen in the real world?

In the human body, when a we get sick, it is often due to a virus. We know that we have a virus, but how did we get it...? The lytic cycle is a way that a virus can get into our system and cells, and start attacking us, eventually making us sick.