The Mid Norfolk MP George Freeman has been given his first ministerial job as Minister for Life Sciences jointly in the Department for Health and Department for Business, Innovation and Skills.
Mr Freeman worked in the biomedical field before becoming an MP in 2010.
In 2011 he was appointed Government Adviser on Life Sciences to the then Universities & Science Minister David Willetts.
Andrew Lansley leaves the top table of politics after a decade by leaving the Cabinet and announcing he will step down as an MP next year.
David Cameron has carried out the biggest wholesale shake-up of his ministerial team since becoming Prime Minister.
Liz Truss is one of the fastest-rising stars of the 2010 intake of Conservative MPs, reaching the Cabinet at the age of just 38.