A container for selective transport of samples of biological material or of biological origin suitable for containing at least a fluid or liquid and/or for containing at least a portion of a collecting device, the container having a selective passage portion configured to prevent exit of a fluid or liquid from the container, through the passage portion, at least in at least an operating sealed condition defined at least by a rest state of the container or by a first value of mechanical shaking of the container and/or by a first value of relative centrifugal force to which the container is subjected, and configured selectively to enable exit of the fluid or liquid from the container, across the passage portion, at least in an operating passage condition, defined at least by a corresponding second state of mechanical shaking of the container and/or wherein the container is subjected to a corresponding second relative centrifugal force.