In the ek bio book it says that in the bowmans capsule urea diffuses into the filtrate under filtration pressure.
I thought all the big molecules were pushed through the fenestrations/cracks in the endothelium/capillaries to get into the filtrate?
I know osmotic pressure works against hydrostatic pressure to push the fluid, but i thought that was just for water?
Also does hydrostatic pressure fall under the category of active transport?
I thought all the big molecules were pushed through the fenestrations/cracks in the endothelium/capillaries to get into the filtrate?
I know osmotic pressure works against hydrostatic pressure to push the fluid, but i thought that was just for water?
Also does hydrostatic pressure fall under the category of active transport?