The Transfer of Fluid from the Glomerulus to Bowman's Capsule

Question

The transfer of fluid from the glomerulus to Bowman's capsule
A)results from active transport.
B)transfers large molecules as easily as small ones.
C)is very selective as to which subprotein-sized molecules are transferred.
D)is mainly a consequence of blood pressure in the capillaries of the glomerulus.
E)usually includes the transfer of red blood cells into Bowman's capsule.

Accepted Answer

The transfer of fluid from the glomerulus to Bowman's capsule is mainly a consequence of blood pressure in the capillaries of the glomerulus. This process is known as filtration and occurs due to the high pressure in the glomerular capillaries, which forces water and small solutes through the filtration membrane into Bowman's capsule. The transfer of large molecules such as proteins is limited by the size of the filtration membrane, which only allows smaller molecules to pass through. Red blood cells are too big to pass through the filtration membrane and are therefore not included in the transfer of fluid to Bowman's capsule.