What process moves plasma from the blood in the glomerulus into Bowman's capsule?

What process moves plasma from the blood in the glomerulus into Bowman's capsule?

• A. Glomerular filtration
• B. Tubular reabsorption
• C. Secretion
• D. Osmosis

Answer: (A)

The main process here is glomerular filtration. In the glomerulus, blood pressure pushes water and small solutes through a filtering barrier into Bowman's capsule, producing the glomerular filtrate. This filtrate contains water, ions, glucose, and waste products, but not blood cells or large proteins, which stay in the blood. After filtration, other steps like tubular reabsorption and secretion modify the filtrate further along the nephron, but the initial transfer of plasma components into Bowman's capsule is achieved by filtration. Osmosis describes water movement driven by osmotic gradients and isn’t the overall mechanism for moving plasma into Bowman's capsule.

The main process here is glomerular filtration. In the glomerulus, blood pressure pushes water and small solutes through a filtering barrier into Bowman's capsule, producing the glomerular filtrate. This filtrate contains water, ions, glucose, and waste products, but not blood cells or large proteins, which stay in the blood. After filtration, other steps like tubular reabsorption and secretion modify the filtrate further along the nephron, but the initial transfer of plasma components into Bowman's capsule is achieved by filtration. Osmosis describes water movement driven by osmotic gradients and isn’t the overall mechanism for moving plasma into Bowman's capsule.