Will the roof collapse?

[Segge]

Hello!
I hope someone with knowledge wants to look at my concern.
I plan to remove some walls to make the kitchen (which will be torn out and replaced with a new one at the same time) larger and achieve a more open floor plan. But I started to wonder if the walls are load-bearing since they cross the roof trusses? But maybe the house still holds even if something I remove/shorten is load-bearing?
A picture says more than 1000 words so I am linking to a few.

Walls that will be added and removed
https://www.bredbandsbolaget.se/portlet-b2-serviceportal/storage/b379122/Hus/Hus förändring plan.jpg
(The small room in the middle is a WC)

Floor joists
https://www.bredbandsbolaget.se/portlet-b2-serviceportal/storage/b379122/Hus/IMG_5557.JPG

Roof structure
https://www.bredbandsbolaget.se/portlet-b2-serviceportal/storage/b379122/Hus/IMG_5584.JPG

Roof truss
https://www.bredbandsbolaget.se/portlet-b2-serviceportal/storage/b379122/Hus/IMG_5585.JPG

 

[prototypen]

None of the walls should be load-bearing, the truss from the front door to the toilet probably has no support, but it's hard to say since it's unclear how the trusses were calculated.

Protte

 

[Segge]

You're right about that. The house is from '65, could it be that the rafters only rest on the outer walls? The house is only about 8.5×12.5m.

 

[Matti_75]

I would not demolish without shoring up the ceiling and then reinforcing with, for example, a glulam beam. Those walls that go across the rafters support the ceiling.