The correct answer is prophage. In a lysogenic infection, the viral DNA that is embedded in a host cell's DNA is called a prophage. Prophage is actually a bacteriophage genome that is being inserted into the circular bacterial DNA chromosome.
Three conditions (or inhibitors) will stop the enzyme's reaction from taking place. If another substance attaches to the site first the the reaction will not take place because the substrate can no longer attach to the active site. Conditions within the cell like temperature and acidity will also inhibit the reaction because it will change the shape of the active site which is very specific for the substrate that needs to attach to it. The enzyme will then become ineffective.
The steeper the concentration gradient is, the faster the rate of transportation will be.
