Written by Super User on 19 October 2011. Treaties and agreements between nations in the world were codified into law by the Vienna convention and Kenya being a signatory is bound by it.
Top 10 unbelievable historical concurrencies. A locked knee is a condition where, on bending the knee, it becomes fixed in position, often at a 45 degree angle, and the person is unable to straighten the leg or bend it any farther. It is usually possible to maneuver the leg back into a straightened position using the hands.
Quick Answer. The lock-and-key model refers to the way in which a substrate binds to an enzyme's active site. Similar to how a key has to be the correct one for a lock, no reaction takes place if an incorrect substrate tries to bind. The active site of an enzyme is a specific region that receives the substrate.