AP BIOLOGY

Detailed explanation-1: -In a nephron, the blood flows through the glomerulus under great pressure. The reason for this great pressure is that the efferent (outgoing) arteriole is narrower than the afferent arteriole (incoming). This high pressure causes the liquid part of the blood to filter out from the glomerulus into the renal capsule.

Detailed explanation-2: -Explanation : In the kidney, the fluid to be filtered out of the glomeruli into the capsule, a pressure gradient is required. The net pressure gradient is 20mm Hg.

Detailed explanation-3: -Answer: High pressure causes the liquid part of blood to filter out from the glomerulus into the renal tubule.

Detailed explanation-4: -In the glomerulus, the diameter of the atriole is reduced. This causes an increase in the pressure of blood. Due to high pressure, the nitrogenous wastes and the water comes out and falls into the Bowman’s capsule through the pores present in glomerulus.