We have the lytic cycle, the lytic pathway, as well as our lysogenic cycle lysogenic pathway. So let's begin by discussing the lytic cycle which is basically followed by our bacteria phages viruses that infect bacterial cells. So under this pathway, as soon as the virus actually injects itself into the cell or injects the nucleic acid into that cell, in the case of the bacteriophage, the bacteria phage only actually injects the nucleic acid into the cell. It leaves the protein tail, the protein midsection and the protein capsule outside of that cell. So under this pathway, as soon as the virus is inside the cell it directs the cell to synthesize new viruses by using the host cell's machinery. And this includes the nucleus, it includes the endoplasm reticulum, it includes our ribosomes.