Specific proteins in the body control the chemical reactions of metabolism, and each chemical reaction is coordinated with other body functions. In fact, thousands of metabolic reactions happen at the same time â all regulated by the body â to keep our cells healthy and working.
John Adams - 03/04/1797: John Adams is inaugurated as the second President â¦. John Adams is inaugurated as the second President of the United States in Philadelphia. Thomas Jefferson will serve as Vice President. March 04, 1797.
Publisher. A+E Networks. On this day in 1801, Thomas Jefferson is elected the third president of the United States. The election constitutes the first peaceful transfer of power from one political party to another in the United States. By 1800, when he decided to run for president, Thomas Jefferson possessed impressive political credentials and was well-suited to the presidency.