Virus+vs+Bacteria

Lytic Cycle of a Virus: [|Lytic Cycle Animation]


 * 1) **Attachment:** Virus attaches itself to the cell.
 * 2) **Entry:** Enzymes weaken the cell wall and nucleic acid is injected into the cell, leaving the empty capsid outside the cell. Many viruses actually enter the host cell intact.
 * 3) **Replication:** Viral DNA takes control of cell activity.
 * 4) **Assembly:** All metabolic activity of the cell is directed to assemble new viruses.
 * 5) **Release**: Enzymes disintegrate the cell in a process called **lysis**, releasing the new viruses.

Lysogenic Cycle of a virus: Lysogenic cycle
 * 1. Attachment** **:** Virus attaches itself to the cell.
 * 2. Entry:** Enzymes weaken the cell wall and nucleic acid is injected into the cell, leaving the empty capsid outside the cell. Many viruses actually enter the host cell intact.
 * 3. Replication/Provirus:** Viral DNA is integrated into the hosts chromosome. Everytime cell divides, virus is replicated

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