An enzyme is a catalyst that helps to speed up the rate of a reaction by lowering the activation energy of a reaction. There are many enzymes in the human body, without which lots of important reactions would never take place. Cellular respiration is one example of a reaction that is catalysed by enzymes.
Sullivan Act Tim Sullivan, a major Irish criminal passed the Sullivan Act in 1911 to help his constituents rob strangers or to help them against Italian incomers. That is the crux of story that goes with a very early gun control law.
Timeline of British Acts on America, Townshend Acts &raquo. 1767 â Townshend Acts. In 1766 Charles Townshend assumed the position of Chancellor of the Exchequer; he was an ally of Grenville and a strong supporter of colonial taxation, and decided to reattempt the collection of funds from British colonies.