3 Mr and Mrs Keene and their 5 children all go to watch a football match, together with their friends Mr and Mrs Uzuma and their 2 children. Find the number of ways in which all 11 people can line up at the entrance in each of the following cases.

1. Mr Keene stands at one end of the line and Mr Uzuma stands at the other end.
2. The 5 Keene children all stand together and the Uzuma children both stand together.