Upvote:1
Look for signs saying "flight connections" and/or signs for your gate number.
AIUI germany trusts the UK on airport security. So you will normally be allowed straight into the international airside without a further security check. You don't need to go through immigration in germany since the UK and Turkey are both outside the Schengen area.
The airline will check your passport when you board to confirm your ID and that you have appropriate documentation for travel to your destination.
(note: this assumes your flights are on one ticket and therefore your baggage is checked through. You would be mad to book a connection this short on two seperate tickets).
Upvote:2
Munich has an international area, so if you stay in the same terminal, travel on the same ticket both legs and check in for the entire voyage, it is fairly likely that you will be able to transfer within the secure area.