A physics student enhanced a classical microscope by replacing the traditional eyepiece with an ocular camera, enabling direct imaging of microscopic samples. The camera's sensor has a width of 25 mm and individual pixels measure 3.5 μm × 3.5 μm. If a microorganism structure appears with a length of 100 pixels in the captured image, what is the actual length of the microorganism structure in μm? Consider the magnification of the microscope as 100.